Cooperative Behavior: The interaction of two or more persons or organizations directed toward a common goal which is mutually beneficial. An act or instance of working or acting together for a common purpose or benefit, i.e., joint action. (From Random House Dictionary Unabridged, 2d ed)Game Theory: Theoretical construct used in applied mathematics to analyze certain situations in which there is an interplay between parties that may have similar, opposed, or mixed interests. In a typical game, decision-making "players," who each have their own goals, try to gain advantage over the other parties by anticipating each other's decisions; the game is finally resolved as a consequence of the players' decisions.Altruism: Consideration and concern for others, as opposed to self-love or egoism, which can be a motivating influence.Herpestidae: The family of agile, keen-sighted mongooses of Asia and Africa that feed on RODENTS and SNAKES.Dominica: An island republic of the West Indies. Its capital is Roseau. It was discovered in 1493 by Columbus and held at different times by the French and the British in the 18th century. A member of the West Indies Federation, it achieved internal self-government in 1967 but became independent in 1978. It was named by Columbus who discovered it on Sunday, Domingo in Spanish, from the Latin Dominica dies, the Lord's Day. (From Webster's New Geographical Dictionary, 1988, p338 & Room, Brewer's Dictionary of Names, 1992, p151)Games, Experimental: Games designed to provide information on hypotheses, policies, procedures, or strategies.Punishment: The application of an unpleasant stimulus or penalty for the purpose of eliminating or correcting undesirable behavior.Social Behavior: Any behavior caused by or affecting another individual, usually of the same species.Biological Evolution: The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.Microbial Interactions: The inter- and intra-relationships between various microorganisms. This can include both positive (like SYMBIOSIS) and negative (like ANTIBIOSIS) interactions. Examples include virus - bacteria and bacteria - bacteria.Behavior, Animal: The observable response an animal makes to any situation.Allosteric Regulation: The modification of the reactivity of ENZYMES by the binding of effectors to sites (ALLOSTERIC SITES) on the enzymes other than the substrate BINDING SITES.Sexual Behavior, Animal: Sexual activities of animals.Interpersonal Relations: The reciprocal interaction of two or more persons.Models, Theoretical: Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.Models, Psychological: Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.Models, Biological: Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.Population Dynamics: The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.Kinetics: The rate dynamics in chemical or physical systems.Reproduction: The total process by which organisms produce offspring. (Stedman, 25th ed)Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.Feeding Behavior: Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.Health Behavior: Behaviors expressed by individuals to protect, maintain or promote their health status. For example, proper diet, and appropriate exercise are activities perceived to influence health status. Life style is closely associated with health behavior and factors influencing life style are socioeconomic, educational, and cultural.Behavior: The observable response of a man or animal to a situation.Sexual Behavior: Sexual activities of humans.Child Behavior: Any observable response or action of a child from 24 months through 12 years of age. For neonates or children younger than 24 months, INFANT BEHAVIOR is available.Exploratory Behavior: The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity.Adolescent Behavior: Any observable response or action of an adolescent.Maternal Behavior: The behavior patterns associated with or characteristic of a mother.Child Behavior Disorders: Disturbances considered to be pathological based on age and stage appropriateness, e.g., conduct disturbances and anaclitic depression. This concept does not include psychoneuroses, psychoses, or personality disorders with fixed patterns.Behavior Therapy: The application of modern theories of learning and conditioning in the treatment of behavior disorders.Stereotyped Behavior: Relatively invariant mode of behavior elicited or determined by a particular situation; may be verbal, postural, or expressive.Nesting Behavior: Animal behavior associated with the nest; includes construction, effects of size and material; behavior of the adult during the nesting period and the effect of the nest on the behavior of the young.Aggression: Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.Agonistic Behavior: Any behavior associated with conflict between two individuals.Choice Behavior: The act of making a selection among two or more alternatives, usually after a period of deliberation.Risk-Taking: Undertaking a task involving a challenge for achievement or a desirable goal in which there is a lack of certainty or a fear of failure. It may also include the exhibiting of certain behaviors whose outcomes may present a risk to the individual or to those associated with him or her.Protein Binding: The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.Motor Activity: The physical activity of a human or an animal as a behavioral phenomenon.Binding Sites: The parts of a macromolecule that directly participate in its specific combination with another molecule.Self-Injurious Behavior: Behavior in which persons hurt or harm themselves without the motive of suicide or of sexual deviation.Predatory Behavior: Instinctual behavior pattern in which food is obtained by killing and consuming other species.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Aspirations (Psychology): Strong desires to accomplish something. This usually pertains to greater values or high ideals.Ants: Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)Felidae: The cat family in the order CARNIVORA comprised of muscular, deep-chested terrestrial carnivores with a highly predatory lifestyle.Territoriality: Behavior in defense of an area against another individual or individuals primarily of the same species.Vasopressins: Antidiuretic hormones released by the NEUROHYPOPHYSIS of all vertebrates (structure varies with species) to regulate water balance and OSMOLARITY. In general, vasopressin is a nonapeptide consisting of a six-amino-acid ring with a cysteine 1 to cysteine 6 disulfide bridge or an octapeptide containing a CYSTINE. All mammals have arginine vasopressin except the pig with a lysine at position 8. Vasopressin, a vasoconstrictor, acts on the KIDNEY COLLECTING DUCTS to increase water reabsorption, increase blood volume and blood pressure.Arginine Vasopressin: The predominant form of mammalian antidiuretic hormone. It is a nonapeptide containing an ARGININE at residue 8 and two disulfide-linked cysteines at residues of 1 and 6. Arg-vasopressin is used to treat DIABETES INSIPIDUS or to improve vasomotor tone and BLOOD PRESSURE.Receptors, Vasopressin: Specific molecular sites or proteins on or in cells to which VASOPRESSINS bind or interact in order to modify the function of the cells. Two types of vasopressin receptor exist, the V1 receptor in the vascular smooth muscle and the V2 receptor in the kidneys. The V1 receptor can be subdivided into V1a and V1b (formerly V3) receptors.Helping Behavior: Behaviors associated with the giving of assistance or aid to individuals.Safety: Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.Dependency (Psychology): The tendency of an individual or individuals to rely on others for advice, guidance, or support.