*  Heat in evolution's kitchen: evolutionary perspectives on the functions and origin of the facial pit of pitvipers (Viperidae:...
Based on our results, we hypothesize that within the family Viperidae, the ability to use thermal radiation to mediate thermoregulatory decisions is unique to pitvipers and might have arisen concurrently with the facial pits. However, this apparent phylogenetic pattern must be interpreted conservatively, as we only surveyed a single species of true viper and we did not examine Azemiops feae, the purported sister taxon to the pitvipers (Parkinson et al., 2002). The range of species studied needs to be expanded significantly to test this hypothesis fully.. The ability to mediate behavioral thermoregulation using only thermal radiation as a cue appears to be an ancestral trait among pitvipers. The simple phylogenetic and ecological presence or absence pattern that we found indicates that the use of thermal radiation cues to direct thermoregulatory movements arose very early in the history of pitvipers. As this behavior was absent in the only true viper studied, it is possible that this behavior ...
*  VaH3, one of the principal hemorrhagins in Vipera ammodytes ammodytes venom, is a homodimeric P-IIIc metalloproteinase. -...
Hemorrhage is the most potent manifestation of envenomation by Vipera ammodytes ammodytes (V. a. ammodytes) venom in man. A detailed description of the venom components contributing to this effect is thus medically very important. We have characterized a novel component, termed here VaH3, as a potently hemorrhagic snake venom metalloproteinase (SVMP). Its proteolytic activity and overall stability depend on the presence of Zn(2+) and Ca(2+) ions. The molecular mass of this slightly acidic molecule, determined by MALDI/TOF analysis, is 104 kDa. Chemical reduction and S-carbamoylmethylation result in a single monomer of 53.7 kDa. N-deglycosylation decreased this mass by 4.6 kDa. The complete amino acid sequence of VaH3 was determined by protein and cDNA sequencing, showing that each of the identical glycoprotein subunits comprise a metalloproteinase, a disintegrin-like domain and a cysteine-rich domain, VaH3 belongs to the P-IIIc class of SVMPs. It shows strong sequence similarity to vascular endothelial
*  Cobra gabonica synonyms, Cobra gabonica antonyms - FreeThesaurus.com
Synonyms for Cobra gabonica in Free Thesaurus. Antonyms for Cobra gabonica. 1 synonym for Bitis gabonica: gaboon viper. What are synonyms for Cobra gabonica?
*  Gaboon viper - Next Door Zoo
The gaboon viper is a venomous snake living in central Africa. These snakes have an amazing pattern on their backs, comprised mostly of various sizes, shapes, and colors of triangles. Their scales can be olive green, black, white, gray, and different shades of brown. These earthy colors help the gaboon viper camouflage with the leaves on the forest floor.. The picture below shows a close-up of a this snake's head. The first thing to notice is the red arrows pointing to the bulges on either side of the snake's head. These bulges, which make the head triangular, are the venom sacks where the venom is stored. At the tip of the snake's nose, you can see two small horns close together. These can be used to distinguish these snakes from most others. Below the horns are the snakes' nostrils, which help them detect prey.. ...
*  Osmotic Fragility Of Human Erythrocytes In Vitro Using Vipera Lebetina Venom | 19873
The objective of this study was to investigate the in vitro effect of Vipera lebetina venom on human erythrocytes osmotic fragility with respect to differ...
*  EC
bonds in fibrinogen to form fibrin and release fibrinopeptides A and B Other names: gabonase; okinaxobin II; Bitis gabonica venom serine proteinase; afaâcytin. Comments: From the venom of the Gaboon viper Bitis gabonica. Activates Factor XIII. Not inhibited by antithrombin III/heparin or hirudin, unlike EC (thrombin).. Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 104003-74-9. References 1. Pirkle, H., Theodor, I., Miyada, D. and Simmons, G. Thrombin-like enzyme from the venom of Bitis gabonica. Purification, properties and coagulant actions. J. Biol. Chem. 261 (1986) 8830-8835. [PMID: 3522580]. ...
*  Cobra lachesis | definition of Cobra lachesis by Medical dictionary
Looking for online definition of Cobra lachesis in the Medical Dictionary? Cobra lachesis explanation free. What is Cobra lachesis? Meaning of Cobra lachesis medical term. What does Cobra lachesis mean?
*  Dangerous snakes safaris | African Safari
About 190 species. Arguably the most advanced snakes, a group which includes the rattlesnakes, the European adder (vipera berus) , and the gaboon viper (bitis gabonica), which hold the record for length of fangs. This is possible because, as in all vipers , the fangs can be folded into the roof of the mouth and are swivelled forward during a bite. Sometimes the pit vipers (rattlesnakes and their kin) are placed in a separate family. All of them have a heat-sensitive pit on each side of their face, for detecting the body warmth of mammals or birds, enabling them to strike accurately in pitch darkness. ...
*  Phylogeography of the widespread African puff adder (Bitis arietans) reveals multiple Pleistocene refugia in southern Africa -...
Evidence from numerous Pan-African savannah mammals indicates that open-habitat refugia existed in Africa during the Pleistocene, isolated by expanding tropical forests during warm and humid interglacial periods. However, comparative data from other taxonomic groups are currently lacking. We present a phylogeographic investigation of the African puff adder (Bitis arietans), a snake that occurs in open-habitat formations throughout sub-Saharan Africa. Multiple parapatric mitochondrial clades occur across the current distribution of B. arietans, including a widespread southern African clade that is subdivided into four separate clades. We investigated the historical processes responsible for generating these phylogeographic patterns in southern Africa using species distribution modelling and genetic approaches. Our results show that interior regions of South Africa became largely inhospitable for B. arietans during glacial maxima, whereas coastal and more northerly areas remained habitable. This ...
*  Bitis gabonica | The Reptile Database
Taxonomic database that provides basic information about all living reptile species, such as turtles, snakes, lizards, and crocodiles, as well as tuataras and amphisbaenians, but does not include dinosaurs.
*  viper | Indiansnakes.org
Saw-scaled Viper is the only Echis species found in India and member of famous Big Four. This is also the smallest Viperidae member with an average size of 30cm only. Indian Saw Scaled Viper's population ends eastwards in Odisha and West Bengal states with eastern-most boundary of the genus Echis. In deserts and semi-deserts of India this is perhaps the most common venomous snake and so the most important medically significant reptile for deserts and semi-deserts.. ...
*  Lachesis facts, information, pictures | Encyclopedia.com articles about Lachesis
Get information, facts, and pictures about Lachesis at Encyclopedia.com. Make research projects and school reports about Lachesis easy with credible articles from our FREE, online encyclopedia and dictionary.
*  Surucucu - Wikipedia
Nota: Se procura a surucucu africana, veja Biúta. Lachesis muta, vulgarmente conhecida como surucucu, surucutinga, surucucutinga, surucucu-de-fogo, surucucu-picode-jaca e cobra-topete, é a maior cobra peçonhenta da América do Sul. Surucucu vem do tupi suruku'ku, ç'uru cu cu ou çuú'u'u significa "que morde muito". Já "surucucutinga" e "surucutinga" vêm do tupi suruku'kutinga, ou seja, "surucucu branca". Seu gênero, Lachesis, é uma referência a Láquesis, uma das três Moiras mitológicas gregas que decidiam o destino dos seres humanos e deuses. Muta ("muda" em latim) é uma referência ao fato de a surucucu vibrar sua cauda, como a cascavel, sem, no entanto, produzir o ruído que esta produz.[carece de fontes?] Vive em florestas densas, principalmente na Amazônia, mas conhecem-se registros na literatura da presença desse animal até em áreas isoladas de resquícios de Mata Atlântica como na região de Serra Gande, município de Uruçuca, na Bahia. A espécie Lachesis muta ...
*  ADW: Viperidae: PICTURES
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. ...
*  Image of the Day Articles | The Scientist Magazine®| Page 117
The West African Gaboon viper conceals itself on the leaf-littered forest floor thanks to patterning that makes the contours of its body tough to spot.. 0 Comments. ...
*  Bothriechis rowleyi (Rowley's Palm Pit Viper)
Alvarez del Toro, M. 1983. Los reptiles de Chiapas. 3ra edicion. Instituto Zoologico del Estado, Tuxtla Gutiérrez, Chiapas, Mexico.. Campbell, J.A. and Lamar, W.W. 1989. The Venomous Reptiles of Latin America. Cornell University Press, Ithaca, New York.. Campbell, J.A. and Lamar, W.W. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock, Ithaca, New York and London, UK.. IUCN. 2007. 2007 IUCN Red List of Threatened Species. Available at: www.iucnredlist.org. (Accessed: 12th September 2007).. Jimenez-Lang, N., Vidal, R. and Luna, R. 2002. Registro adicional de Bothriechis rowleyi (Serpientes: Viperidae) en Chiapas Mexico. Boletin de la Sociedad Herpetologica Mexicana 10(2): 43-45.. ...
*  Amazon Jungle Survival Guide - For Visiting Tribes in the Brazilian Amazon
The surucucú is a venomous viper (Lachesis muta), also known as the shushúpe in Peru, or Bushmaster in English, that is highly aggressive. Not only is its venom deadly, the surucucú will bite you multiple times, and is even known to chase people.. If you are bitten and don't get the antivenom within a couple of hours, you will die. A friend of mine was bit by a shushupe when she worked for an eco-lodge in the Iquitos area. They rushed her to Iquitos by high-speed motorboat, but it took an hour for her to reach the city. When she got to the hospital, she was bleeding out of her eyes, ears, mouth and fingernails. It took her a month to recover, and her health has been fragile ever since.. The best defense against surucucús are knee high rubber boots and being mindful of where you are stepping. They like to hide in the spaces under tree roots, especially cavities under tree roots that are covered by leaves. If you are stepping over a large root, try to look over it to see what's on the other ...
*  WhatIsOrmus - Om-1060-Hpl Ormus Minerals Homeopathic Lachesis Mutans - Bushmaster Snake
Ormus Minerals for Natural Nutritional Energy and how it can bless your life and health. What is Ormus? Well it is something that is all around us in the Air, Water, Land and the food we eat. Now with todays technology we have learned how to use it as a Energy Nutrition supplement to help our lives be fuller of Life.
*  Lachesis. - 'SENSATIONS AS IF -' A Repertory of Subjective Symptoms. By Herbert A. ROBERTS, M. D.
EYES AND VISION : Sand in eyes :- Am-br., Am-m., Ang., Ars., Apis, Apoc., Asc-t., Aur., Bar-c., Bell., Berb., Bry., Cann-s., Carb-v., Caust., Chel., Chin., Chin-m., Chlol., Cob., Con., Cor-r., Dig., Elaps, Euph., Euphr., Fago., Ferr., Fl-ac., Form., Gast., Grat., H m., Hep., Hura, Ign., Jac., Kali-bi., Kali-m., Kali-p., Lach., Led., Lith., Luna, Lyc., Med., Merc., Myric., Nat-m., Nat-p., Nit-ac., Op., Ox-ac., P on., Peti., Petr., Phos-ac., Phos., Phyt., Pic-ac., Plat., Psor., Puls., Rad., Rhod., Rhus-t., Rhus-v., Sep., Sil., Sol-n., Spig., Stram., Sulph., Syph., Tarent., Thuj., Upas, Urt-u., Vib., Xanth., Zinc., Zing ...
*  Ammodyte synonyms, Ammodyte antonyms - FreeThesaurus.com
Synonyms for Ammodyte in Free Thesaurus. Antonyms for Ammodyte. 1 synonym for Ammodytes: genus Ammodytes. What are synonyms for Ammodyte?
*  Maregîska şanikdar - Wîkîpediya
Ev binefamîle, bi şanikên ku li ser bêvilên wê têne nasîn. Dirêjiya hinek cinsên maregîska şanikdar dighêje qasî 30-45 cm wekî li ba cureyên cinsa Hypnale. Lê di cureyên cinsa Lachesis wekî maregîska şahdaristanan, ku dirêjiya wê dighêje qasî 3.65 m. Şahdaristanan, bi rast ew maregîska tew rê girs li parzemîna Amerîkaya Başûrê.[4]. ...
*  Hypertension and Pit Vipers | Fakename2's Weblog
Yesterday I read a fascinating (to me, anyway) article about the history of the development of drugs to treat hypertension (high blood pressure). The topic is interesting to me because a couple of months ago, my blood pressure inexplicably went from 'Too high' to 'Be prepared to die'. For just over a month now, I've…
*  Acridophaga synonyms, Acridophaga antonyms - FreeThesaurus.com
Synonyms for Acridophaga in Free Thesaurus. Antonyms for Acridophaga. 1 synonym for Vipera: genus Vipera. What are synonyms for Acridophaga?
*  Relative proportion of each category of product found i | Open-i
Relative proportion of each category of product found in M. corallinus venom gland transcriptome. Toxin, Non-toxin and No Hit categories are, respectively, clus
*  As mutações e o desenvolvimento biotecnologico by Catarina Massano on Prezi
As mutações genéticas alteram a sequência de nucleótidos do DNA por substituição, adição ou remoção de bases. Estas mutações conduzem à alteração da proteína produzida, alterando, geralmente, o fenótipo ...