Sexual selection selection evolutionary. Medical search. Frequent questions

Adaptationist thinking about physiological mechanisms, such as the heart, lungs, and the liver, is common in evolutionary biology. (wikipedia.org)
Some evolutionary psychologists argue that evolutionary theory can provide a foundational, metatheoretical framework that integrates the entire field of psychology in the same way evolutionary biology has for biology. (wikipedia.org)
Proponents suggest that it seeks to integrate psychology into the other natural sciences, rooting it in the organizing theory of biology (evolutionary theory), and thus understanding psychology as a branch of biology. (wikipedia.org)
By sharing his infectious love of the wonders of evolutionary biology, Wilson inspired countless others with his impassioned vision about the need to safeguard biological diversity. (skeptic.com)
In episode 150 of The Michael Shermer Show, Harvard professor of human evolutionary biology Daniel Lieberman discusses his pioneering researcher on the evolution of human physical activity in his book Exercised: Why Something We Never Evolved to Do is Healthy and Rewarding. (skeptic.com)
The descriptions of applications and modeling projects stretch beyond the strict boundaries of computer science to include dynamical systems theory, game theory, molecular biology, ecology, evolutionary biology, and population genetics, underscoring the exciting "general purpose" nature of genetic algorithms as search methods that can be employed across disciplines. (mit.edu)
EBIO Departmental Honors is a program for students in the Ecology and Evolutionary Biology Department who engage in independent research with a faculty advisor and write and defend an Honors thesis. (colorado.edu)
Evolutionary Biology: Latest Research & News Unveiled! (freescience.info)
This is where evolutionary biology , the study of how species change over time, and coevolution , the ecological relationship between different organisms, come into play. (freescience.info)
With an authoritative tone and simple language, let's dive deeper into this captivating realm of evolutionary biology, which encompasses the study of organisms and their adaptations over time. (freescience.info)
Evolutionary biology, with its focus on the adaptation of species to their environment, is crucial for understanding the intricate workings of ecological systems. (freescience.info)
One of the primary contributions of evolutionary biology to ecology is its ability to elucidate how biologists study and understand the ecological adaptations of species. (freescience.info)
Evolutionary biology, including the study of genetic diversity and population structure, is crucial for guiding conservation efforts. (freescience.info)
The study of coevolution, an integral part of evolutionary biology, uncovers fascinating interactions between different species within ecosystems. (freescience.info)
Ecology and evolutionary biology provide valuable tools for biologists to make accurate predictions about these responses. (freescience.info)
Journal of Evolutionary Biology 25:2481-2488 [ PDF ]. (fsu.edu)
An insightful blend of biology and social science, this work presents a fresh evolutionary perspective on sex, gender, and sexuality, with widespread implications for modern societies. (ucpress.edu)
Evolutionary biology is a sub-field of biology concerned with the study of the evolutionary processes that produced the diversity of life on Earth . (wikimedia.org)
Journal of Evolutionary Biology, 20: 1941-1949. (wikipedia.org)
I have worked extensively on various aspects of sexual selection and sexual conflict, in particular on the role of selfish genetic elements in reproductive biology. (exeter.ac.uk)
Evolution of female multiple mating - Why females of nearly all animals tend to mate with more than one male (polyandry) remains a pressing question for evolutionary biology. (exeter.ac.uk)
Sexual conflict has profound implications for our understanding of numerous areas of evolutionary biology including sexual selection, sex determination and speciation. (exeter.ac.uk)
The course is the first course on the MSc programme in Evolutionary Biology. (lu.se)
Our teaching promotes active, inquiry-based learning that takes advantage of our Department's world-leading research on the evolutionary biology of microbes, plants and animals. (lu.se)
The course is structured around four key problem agendas in evolutionary biology. (lu.se)
The latest schedule for the course Evolutionary Biology - Patterns and Processes in the schedule software TimeEdit. (lu.se)
The question of how and why genetic variation arises and is maintained over long periods of time is of key importance to evolutionary biology, population genetics and conservation biology. (lu.se)
Our study clarifies when, how and why this variation arose, and shows that this variation has been maintained over long evolutionary time periods through so-called balanced natural selection", says Erik Svensson, biology professor at Lund University. (lu.se)

To honor the legendary evolutionary theorist and biologist Edward O. Wilson (1929-2021), who passed away on December 26, 2021 at the age of 92, we present two tributes to him from Mark Moffett and Frank Sulloway, scientists who knew the man well and are deeply familiar with his work and his legacy. (skeptic.com)
In this tribute to Edward O. Wilson, Frank J. Sulloway recounts how the Harvard evolutionary biologist had a profound and enduring influence on his own life and academic career. (skeptic.com)
To honor the legendary evolutionary theorist and biologist Edward O. Wilson, who passed away on December 26 at the age of 92, his former student Mark Moffett, pays tribute to his mentor in this deeply moving memoir of his time working with the great scientist. (skeptic.com)
I am an evolutionary biologist interested in the evolution of life-histories and in particular, how they are shaped by sexual selection and constrained by nutrition. (uni-ulm.de)
A distinguished evolutionary biologist, Roughgarden takes on the medical establishment, the Bible, social science-and even Darwin himself. (ucpress.edu)
She is the author of several books, including Evolution and Christian Faith: Reflections of an Evolutionary Biologist and The Genial Gene: Deconstructing Darwinian Selfishness (UC Press). (ucpress.edu)
Evolutionary biologist David P. Barash has noted that males of most species are sexually aggressive and apt to engage in sex with multiple partners when they can. (sentientdevelopments.com)
I am an evolutionary biologist with research interests focused on the evolutionary ecology of sex. (exeter.ac.uk)

The combination of sexual selection processes (1, 2, 3) and those for supernormal stimuli (4, 5) could have directed the change in much the same way as possibly occurred for peacock tails. (behavior.net)
It provides biologists with insights into the mechanisms driving ecological processes, such as coevolution and natural selection. (freescience.info)
Reproductive strategy affects population dynamics and genetic parameters that can, in turn, affect evolutionary processes during the course of biological invasion. (plos.org)
Evolutionary processes and genetic attributes of invasive populations may underpin their success in becoming established in a new range [1] - [3] . (plos.org)
The researchers have suggested these processes may be ecological differences, such as differences in vegetation at a macro-level, which are keeping the populations separate or sexual selection. (bbc.co.uk)
You will learn to analyse and understand the evolutionary processes that give rise to novelty, adaptation and diversity. (lu.se)
Important methods to study ecological and evolutionary processes are also discussed. (lu.se)
While comparative phylogenetic analyses of extant species flocks have revealed patterns and processes of their diversification, little is known about evolutionary trajectories within lineages, the impacts of environmental drivers, or the scope and nature of now-extinct diversity. (bvsalud.org)
We are looking for a student with bioinformatic skills, who also have good understanding and interest in evolutionary processes. (lu.se)
A recently introduced species with a rapid rate of reproduction is a useful study species when analysing evolutionary processes, due to the adaptations that will occur as it settles into its new surroundings. (lu.se)
These new genetic results help us understand both the evolutionary processes that take place within a species, and what happens over longer evolutionary macroevolutionary time scales of tens of millions of years and across several different species", concludes Erik Svensson. (lu.se)

Evolutionary psychology is a theoretical approach in psychology that examines cognition and behavior from a modern evolutionary perspective. (wikipedia.org)
These evolutionary psychologists argue that much of human behavior is the output of psychological adaptations that evolved to solve recurrent problems in human ancestral environments. (wikipedia.org)
The relationship between breeding system and relative brain size has received little investigation", said Pitnick, who hopes his study will spur more research into the evolution of brains, behavior and what he calls the "extravagant and costly ornaments and armaments favored by sexual selection. (scienceagogo.com)
She disputes a range of scientific and medical concepts, including Wilson's genetic determinism of behavior, evolutionary psychology, the existence of a gay gene, the role of parenting in determining gender identity, and Dawkins's "selfish gene" as the driver of natural selection. (ucpress.edu)
So answers to mating behavior questions have evolutionary implications, Höbel said. (uwm.edu)
it's providing us with an enhanced understanding of mate selection and sexual behavior. (sentientdevelopments.com)
Part IV: Evolutionary Explanations of Behavior. (politics-prose.com)
Venereal syphilis first emerged in Europe at the end of the 15th century, as a result of the sexual and social behavior of the time ( 5 ). (cdc.gov)
Current behavior aligned with updated NHSS transmission category in 56% of men with a transmission category of male-to-male sexual contact. (cdc.gov)

Sexual dimorphism or evolutionary branching? (evolutionary-ecology.com)
For a broad range of ecological scenarios, we investigate the odds that disruptive selection leads to sexual dimorphism relative to polymorphisms that appear after evolutionary branching. (evolutionary-ecology.com)
When models that allow for sexual dimorphism are compared with constrained models with equal phenotypes in males and females, a sexual dimorphism is expected to evolve instead of the evolutionary branching in the constrained model. (evolutionary-ecology.com)
Sexual selection maintains whole-body chiral dimorphism. (wikipedia.org)
We are interested in various aspects of the genetics of sex differences, including sexual selection and sexual conflict, the evolution of sexual dimorphism, and sex chromosome evolution. (lu.se)
To investigate the existence of sexual dimorphism between the first and second permanent molars. (bvsalud.org)
Herein, odontometric measures were used to evaluate sexual dimorphism in the first and second maxillary/mandibular permanent molars to assist the process of human identification. (bvsalud.org)

In my research I test how sexual selection and sexual conflict affect aging across the sexes. (uni-ulm.de)
He reasoned that since the bodies of females are more nearly hairless, the loss of fur was due to sexual selection of females at a remote prehistoric time when males had overwhelming selective power, and that it nonetheless affected males due to genetic correlation between the sexes. (wikipedia.org)
It implies that the possibility for sympatric speciation caused by ecological selection pressures can be removed by the evolution of ecological differences between the sexes. (evolutionary-ecology.com)
Sexual selection and sexual conflict - Female multiple mating creates a conflict of interests between the sexes, since males are selected to attempt to manipulate each female he mates with into putting as much of her resources into his offspring even if this lowers her overall reproductive output. (exeter.ac.uk)
This section deals with social mating systems, extra-pair copulation, the evolutionary consequences of conflicts between the sexes and parent-offspring, as well as theories of sexual selection and mate choice. (lu.se)
While inter-sexual mimics are known in both sexes and a diverse range of animals, their evolutionary origin is poorly understood. (lu.se)
The great colour variation in insects fascinates the general public, and raises questions about the function of colour signals and its evolutionary consequences for partner choice and conflicts between the sexes", says Erik Svensson. (lu.se)

Our work examines trait functional significance, using both ecological and evolutionary approaches. (google.com)
This ecological knowledge is essential in the face of factors like habitat loss or climate change, allowing for effective conservation measures based on natural selection. (freescience.info)
Understanding these intricate relationships helps ecologists comprehend the delicate balance within ecological communities and the role of natural selection in driving variation. (freescience.info)
From unraveling the mysteries of natural selection and genetics to guiding conservation efforts, this field provides a comprehensive understanding of how ecological systems function. (freescience.info)
Disruptive selection due to ecological causes can lead to different types of phenotypic polymorphism. (evolutionary-ecology.com)
One item of practical significance is that association of aquatic beetle larvae with adults has the potential to make the wealth of characters present in the larval stage available for ecological and evolutionary study. (laurentian.ca)
Current research projects include how phenotypic plasticity influences adaptive diversification, the evolutionary causes and consequences of extra-genetic inheritance, and the genetic, developmental and ecological factors underlying evolution through introgressive hybridization. (lu.se)
The central topic of the course is evolutionary theory and its ecological applications. (lu.se)
This section highlights the importance of organism's physiological and morphological adaptations and limitations, both at ecological and evolutionary time scales. (lu.se)

Evolutionary psychologists apply the same thinking in psychology, arguing that just as the heart evolved to pump blood, and the liver evolved to detoxify poisons, there is modularity of mind in that different psychological mechanisms evolved to solve different adaptive problems. (wikipedia.org)
Criticism of evolutionary psychology involves questions of testability, cognitive and evolutionary assumptions (such as modular functioning of the brain, and large uncertainty about the ancestral environment), importance of non-genetic and non-adaptive explanations, as well as political and ethical issues due to interpretations of research results. (wikipedia.org)
Evolutionary psychology is an approach that views human nature as the product of a universal set of evolved psychological adaptations to recurring problems in the ancestral environment. (wikipedia.org)
Just as human physiology and evolutionary physiology have worked to identify physical adaptations of the body that represent "human physiological nature," the purpose of evolutionary psychology is to identify evolved emotional and cognitive adaptations that represent "human psychological nature. (wikipedia.org)
Evolutionary psychology adopts an understanding of the mind that is based on the computational theory of mind. (wikipedia.org)
Evolutionary Psychology specifies the domain as the problems of survival and reproduction. (wikipedia.org)
2008-2010: MSc in Evolutionary Psychology, University of Liverpool. (dur.ac.uk)
And even if they did ask these questions, I doubt that many would analyze it through the lens of evolutionary psychology, sexual selection and gender differentiation. (sentientdevelopments.com)
Fueled by Richard Dawkins's selfish gene notion, Miller argues that humans have developed a complex psychology that encourages sexual choice. (sentientdevelopments.com)
10. Heuristic Evolutionary Psychology, Armin W. Schulz. (politics-prose.com)
11. Evolutionary Psychology and the Problem of Neural Plasticity, - Chuck Ward. (politics-prose.com)

The possibility of sexual selection driving sympatric speciation is not affected by our conclusions. (evolutionary-ecology.com)
Different models and modes of speciation are explained, and the relationship between speciation and natural selection is examined. (lu.se)

In species where females mate with more than one male, sexual selection also continues after copulation in the form of sperm competition and cryptic female choice. (bioone.org)
By analyzing past patterns of adaptation, natural selection, and genetic drift, scientists can anticipate how species might react to future changes in their environment. (freescience.info)
I am primarily a 'macro-evolutionary anthropologist', placing broad questions on the evolution of our species' extraordinary cognitive and cultural abilities in the wider context of vertebrate evolution. (dur.ac.uk)
however, on evolutionary timescales, pathogens don't necessarily respect species boundaries. (berkeley.edu)
Discussing the possibilities opened up by the findings, Dr Tan said: 'First, it would be interesting to see if this sexual preference extends to other species of animal. (sciencedaily.com)
Females often drive sexual selection, a preference by one sex for certain characteristics in those of the other sex - and that influences evolution in a species. (uwm.edu)
Evolutionary biologists study the descent of species , and the origin of new species . (wikimedia.org)
A long-term goal of my research program is to study the evolutionary significance of morphological differences among species. (laurentian.ca)
This module will explain and exemplify how scientists unravel evolutionary patterns - from the biogeography of species to the origin of new phyla. (lu.se)
Sometimes the new species can hybridize with established species and give rise to rapid selection of adapted individuals that can outcompete the original species. (lu.se)
This has significance both for conservating species and for the future evolutionary potential of populations to adapt to rapidly changing environments. (lu.se)
We now have a good knowledge base for investigating the colour variation over longer evolutionary time scales among other species of this damselfly genus, which occurs in Europe, Africa, Asia, Australia, North and South America. (lu.se)

Sexual selection is thought to favor the evolution of secondary sexual traits in males that contribute to mating success. (bioone.org)
Studies of experimental evolution offer a powerful approach for assessing evolutionary responses to variation in sexual selection pressures. (bioone.org)
Leigh W. Simmons and Francisco García-González "Evolutionary Reduction in Testes Size and Competitive Fertilization Success in Response to the Experimental Removal of Sexual Selection in Dung Beetles," Evolution 62(10), 2580-2591, (1 October 2008). (bioone.org)
Sexual selection, inter- and intra-, was possibly a factor in the evolution of bipedalism, an upright posture, and perhaps the refinement of modern skull characteristics. (behavior.net)
2010-2014: PhD in primate brain evolution and sexual selection, University of St Andrews, supervised by Dr Gillian Brown and Prof Kevin Laland. (dur.ac.uk)
Adult distribution and gamete mixing influence sexual selection, sexual conflict and the evolution of gamete recognition proteins in the sea. (fsu.edu)
An elegant demonstration of the contribution of sexual selection to brain evolution can be seen in a new study from Syracuse University that found an inverse relationship between testes size and brain size in bats. (scienceagogo.com)
[2] The role of sexual selection in human evolution has not been firmly established although neoteny has been cited as being caused by human sexual selection. (wikipedia.org)
[3] It has been suggested that sexual selection played a part in the evolution of the anatomically modern human brain, i.e. the structures responsible for social intelligence underwent positive selection as a sexual ornamentation to be used in courtship rather than for survival itself, [4] and that it has developed in ways outlined by Ronald Fisher in the Fisherian runaway model. (wikipedia.org)
Sexual selection's role in human evolution cannot be definitively established, as features may result from an equilibrium among competing selective pressures, some involving sexual selection, others natural selection , and others pleiotropy . (wikipedia.org)
Like others in his field, Brothurst, who studies the evolution of sexual reproduction at the University of Liverpool, doesn't "get" men. (livescience.com)
Geoffrey Miller, another evolutionary psychologist, reached a similar conclusion in his book, The Mating Mind: How Sexual Choice Shaped the Evolution of Human Nature . (sentientdevelopments.com)
9. Sensory Exploitation: Underestimated in the Evolution of Art As Once in Sexual Selection Theory? (politics-prose.com)
Women had little impact on the evolution of modern Homo sapiens, except as sexual pawns in male negotiations. (timeshighereducation.com)
Rapid evolution towards higher levels of reproduction following invasions may also result from a relaxation of selection for defence against enemies in the invaded range [10] , [11] . (plos.org)
Based on Darwin's theory of evolution central concepts such as natural and sexual selection and the concept of fitness. (lu.se)
We started the evolution experiment to investigate intralocus sexual conflict on the X chromosome in Drosophila melanogaster . (lu.se)

Teaching and conducting research with students has provided me with a great framework for channeling my love of natural history to train creative, innovative thinkers that address important questions relating to evolutionary adaptation and how populations may respond to ongoing shifts in climate and land use. (warren-wilson.edu)

In this framework, psychological traits and mechanisms are either functional products of natural and sexual selection or non-adaptive by-products of other adaptive traits. (wikipedia.org)
Evolutionary psychologists hold that behaviors or traits that occur universally in all cultures are good candidates for evolutionary adaptations, including the abilities to infer others' emotions, discern kin from non-kin, identify and prefer healthier mates, and cooperate with others. (wikipedia.org)
Sexual selection is thought to produce rapid, unidirectional changes in physical traits even in the absence of environmental pressures and perhaps to have been an important mechanism in the enlargement of our brain. (behavior.net)
Through the study of genetic variation and natural selection, biologists can uncover the specific traits that enable organisms to thrive in different environments. (freescience.info)
Wrangham details the hormonal and developmental mechanisms producing this pattern of traits through selection for one trait: juvenilisation. (timeshighereducation.com)
The chin could also be a trait for sexual selection, but those traits typically only evolve in one gender. (ranker.com)
Life-history traits associated with reproductive strategy are therefore potentially good candidates for rapid evolutionary shifts during invasions. (plos.org)
This study highlights the importance of investigating evolutionary changes in reproductive strategy and associated traits during biological invasions. (plos.org)
To do so we forced the inheritance of the X through females only, to investigate what happens to a number of phenotypic traits when male selection on the X is removed. (lu.se)

Malod K., du Rand E.E., Archer C.R., Nicolson S.W. and Weldon C.W. (2022) Oxidative Damage Is Influenced by Diet But Unaffected by Selection for Early Age of Oviposition in the Marula Fly, Ceratitis cosyra (Diptera: Tephritidae). (uni-ulm.de)
This news brief from January 2022, explores the evolutionary mystery at the heart of the Omicron COVID-19 surge. (berkeley.edu)

For example, the ability to recall information better than males most likely originated from sexual selective pressures on females during competition with other females in mate selection. (wikipedia.org)
Narwhal tusks might send an honest signal of sexual quality to females. (zmescience.com)
A study of mating preferences in fruit flies (Drosophila) has found that males and females respond to the sexual familiarity of potential mates in fundamentally different ways. (sciencedaily.com)
Male fruit flies like to have a variety of sexual partners, whereas females prefer to stick with the same mate -- or move on to his brothers. (sciencedaily.com)

Aging - rising mortality, declining function and fertility over age - remains a puzzling phenomenon to evolutionary biologists. (uni-ulm.de)
Evolutionary biologists explore the origins and relationships between different organisms by examining the principles of natural selection and genetic variation. (freescience.info)

Major evolutionary anthropologist Sarah Hrdy suggests how: babysitting. (timeshighereducation.com)

Genetic algorithms have been used in science and engineering as adaptive algorithms for solving practical problems and as computational models of natural evolutionary systems. (mit.edu)
This module will focus on the genetic and developmental basis of adaptive change and evolutionary novelty. (lu.se)

The module also explains the theories of sexual selection and kin selection, and how they explain morphological and behavioural diversity. (lu.se)

The discipline views the human brain as comprising many functional mechanisms called psychological adaptations or evolved cognitive mechanisms or cognitive modules, designed by the process of natural selection. (wikipedia.org)
How does natural selection work and how does selection bring about adaptations? (lu.se)
The concept of levels of selection and the extent to which genomes and social groups can exhibit adaptations will be examined. (lu.se)

Sexual selection is quite different in non-human animals than humans as they feel more of the evolutionary pressures to reproduce and can easily reject a mate. (wikipedia.org)
The selection pressures that domesticated modern humans reduced reactive violence, while enhancing their ability to plan group violence. (timeshighereducation.com)

2017-present: Assistant Professor in evolutionary approaches to cognition and culture, Durham University. (dur.ac.uk)
Genetic and phenotypic approaches are introduced that conceptualize, document and quantify selection and its outcome. (lu.se)

3) However, sexual selection is usually described as the product of genetic models, particularly 'linkage disequilibrium ' (8) in which a 'gene for' a trait is located near a presumed 'gene for an attraction to' that same trait. (behavior.net)

He also hypothesized that contrasts in sexual selection acting along with natural selection were significant factors in the geographical differentiation in human appearance of some isolated groups, as he did not believe that natural selection alone provided a satisfactory answer. (wikipedia.org)

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. (audible.com)

We provide evidence of balancing selection maintaining male mimicry, in line with previous field population studies. (lu.se)

According to Steven Pinker, it is "not a single theory but a large set of hypotheses" and a term that "has also come to refer to a particular way of applying evolutionary theory to the mind, with an emphasis on adaptation, gene-level selection, and modularity. (wikipedia.org)
8. Human Artistic Behaviour: Adaptation, Byproduct, or Cultural Group Selection? (politics-prose.com)

Learn more about the evidence and social factors that spurred the acceptance of this key aspect of evolutionary theory. (berkeley.edu)
Sexual selection in humans concerns the concept of sexual selection , introduced by Charles Darwin as an element of his theory of natural selection , [1] as it affects humans . (wikipedia.org)
Roughgarden argues that principal elements of Darwinian sexual selection theory are false and suggests a new theory that emphasizes social inclusion and control of access to resources and mating opportunity. (ucpress.edu)
Sex, the theory holds, gives host organisms a leg-up on this evolutionary treadmill. (livescience.com)
To these data we applied the evolutionary theory of task specialisation (ParetoTI) to identify and characterise distinct archetypes, i.e. molecular subtypes, of LNETs. (who.int)

Among freshwater snails that can reproduce both sexually or asexually, more males (and thus more sexual reproduction) occur in shallow areas where the snails are more likely to get infected by flukes, a type of parasite. (livescience.com)
And Robin Baker, author of Sperm Wars: Infidelity, Sexual Conflict, and Other Bedroom Battles , has shown that upwards of 10% of children are not fathered by their "fathers" and that all sperm are not produced for fertilization, but to literally fight off the sperm of other males (how telling is that! (sentientdevelopments.com)
Female alliances had the muscle to resist male aggression, leading to social and sexual selection for better-behaved males. (timeshighereducation.com)
Through concealed ovulation and sexual receptivity throughout their cycles, our foremothers increased the chances that males who stayed to help would father their children. (timeshighereducation.com)
Premature (early) ejaculation is the most common sexual disorder in men younger than 40 years, with 30-70% of males in the United States affected to some degree at one time or another. (medscape.com)

Since these out-of-place genes could not have been inherited from evolutionary ancestors, the best explanation is that God tailored them to fit and function exactly as they do in each organism. (icr.org)

The general aim of the course is that students, on completion of the course, shall have developed an evolutionary thinking to be applied when planning projects and when analysing their own and others' research results in animal ecology. (lu.se)

Domestication and juvenilisation explain the difference between bonobos and chimps since their evolutionary divergence in the past million years. (timeshighereducation.com)

Dr Tan said: 'Sibling relationships are important in sexual interactions, and many scientific studies have focused largely on two things: male-female relatedness and male-male relatedness. (sciencedaily.com)

Sexual selection, however, has the unusual characteristic of providing a consistent influence on reproductive choices during mating rather than at more distal moments. (behavior.net)
Sexual selection is a biological way one sex chooses a mate for the best reproductive success. (wikipedia.org)
Selfish genetic elements and sexual selection - Selfish genetic elements (SGEs), such as transposable elements, segregation distorters and maternally inherited symbionts are found in all living organisms where they can cause reproductive incompatibilities, feminization, and killing of sons and sperm resulting in sex ratio distortion. (exeter.ac.uk)
We specifically found a large negative effect on male reproductive fitness when carrying the FM, which made us curious to investigate if we could find signs of compensatory selection on the autosomes, to counter this decrease in male fitness. (lu.se)

Sexual selection is one of the main drivers of biological diversity. (uwm.edu)
In doing so you will learn how to unravel the evolutionary history of biological systems. (lu.se)

[5] As the 19th century progressed, scientists began researching sexual dimorphisms in the brain significantly more. (wikipedia.org)
[6] Until recent decades, scientists knew of several structural sexual dimorphisms of the brain, but they did not think that sex had any impact on how the human brain performs daily tasks. (wikipedia.org)
Scientists have identified an inherent trade-off in avian sexual selection. (zmescience.com)
Indeed, one of the most surprising discoveries of the past two decades has been the extent of sexual infidelity - what scientists call extra-pair copulations. (sentientdevelopments.com)

But natural selection has given us a suite of beneficial social features, including our capacity for love, friendship, cooperation, and learning. (audible.com)
The insight that natural selection weakens over age provided an explanation and suggested that aging is inevitable. (uni-ulm.de)

Sexual behaviors are more persistent over time than injection drug use. (cdc.gov)

This process could underly many male sexual displays, at least to the extent that such are driven by female mating preferences. (behavior.net)
Much of the amazing mating diversity we see in nature - like songs, plumage color and dances - are the outcome of sexual selection by female choice. (uwm.edu)

It's an evolutionary phenomenon known as "negative frequency-dependent sexual selection. (mackaycartoons.net)

Differences in testes size were dependent on selection history and not breeding regime. (bioone.org)

Trivers, R. L. in Sexual Selection and the Descent of Man (ed. (nature.com)

Here we removed sexual selection by enforcing monogamy on replicate lines of a naturally polygamous horned beetle, Onthophagus taurus , and monitoring male investment in their testes for 21 generations. (bioone.org)

From an evolutionary perspective, formation of preferences for diet-associated body odours was possibly shaped by means of sexual selection. (telegraph.co.uk)

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