altruistic
41Kin selection — From the time of antiquity field biologists have observed that some organisms tend to exhibit strategies that favor the reproductive success of their relatives, even at a cost to their own survival and/or reproduction. The classic example is a… …
42Price equation — The Price equation (also known as Price s equation) is a covariance equation which is a mathematical description of evolution and natural selection. The Price equation was derived by George R. Price, working in London to rederive W.D. Hamilton s… …
43Reciprocal altruism — Diagram showing reciprocal altruism In evolutionary biology, reciprocal altruism is a behaviour whereby an organism acts in a manner that temporarily reduces its fitness while increasing another organism s fitness, with the expectation that the… …
44LGBT rights in Australia — The recognition and rights of LGBT couples and individuals in Australia have gradually been increasing within the states and territories since the 1970s. Laws regarding sexual activity apply equally to same sex and heterosexual activity in all… …
45Competitive altruism — is a possible mechanism for the persistence of cooperative behaviors, specifically those that are performed unconditionally. The theory of reciprocal altruism can be used to explain behaviors that are performed by a donor who receives some sort… …
46emotion — emotionable, adj. emotionless, adj. /i moh sheuhn/, n. 1. an affective state of consciousness in which joy, sorrow, fear, hate, or the like, is experienced, as distinguished from cognitive and volitional states of consciousness. 2. any of the… …
47Social behaviour in animals — Introduction actions of animals living in communities. Such behaviour may include the feeding of the young, the building of shelters, or the guarding of territory. General characteristics Social behaviour (Social behaviour in animals) …
48Sociobiology — is a neo Darwinian and socialism synthesis of scientific disciplines that attempts to explain social behavior in all species by considering the evolutionary advantages the behaviors may have. It is often considered a branch of biology and… …
49Altruism in animals — Altruism is a well documented animal behaviour, which appears most obviously in kin relationships but may also be evident amongst wider social groups, in which an animal sacrifices its own well being for the benefit of another animal. Contents 1… …
50ethics — /eth iks/, n.pl. 1. (used with a sing. or pl. v.) a system of moral principles: the ethics of a culture. 2. the rules of conduct recognized in respect to a particular class of human actions or a particular group, culture, etc.: medical ethics;… …
