![]() ![]() It looks at how competition and cooperation between and within species affects evolutionary fitness. Behavioral Ecology Definition: The study of the evolutionary basis of social behavior.Įxplanation: The study of behavioural interactions between individuals within populations and communities, usually in an evolutionary context. Gibbons live in tropical and subtropical rainforests from eastern Bangladesh and northeast India to southern China and Indonesia. The family historically contained one genus, but now is split into four genera and 18 species. Gibbons Definition: Small, arboreal, Asiatic apes.Įxplanation: Gibbons are apes in the family Hylobatidae. During brachiation, the body is alternately supported under each forelimb. Brachiation Definition: Under-the-branch swinging.Įxplanation: A form of arboreal locomotion in which primates swing from tree limb to tree limb using only their arms. The condition occurs in many animals and some plants. Sexual Dimorphism Definition: Marked differences in male and female anatomy and temperament.Įxplanation: The condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs. Resembling or characteristic of a nonhuman ape apelike: an anthropoid forehead. Resembling a human, especially in shape or outward appearance. Anthropoid Definition: Monkeys, apes, and humans.Įxplanation: The primate suborder Anthropoidea, which consists of the New World monkeys, Old World monkeys, and apes including humans. The simians include catarrhines, and the platyrrhines. The name is sometimes spelled Haplorrhini. Haplorrhini Definition: The primate suborder that includes lemurs, lorises, and their ancestors.Įxplanation: Suborder of primates containing the tarsiers and the simians, as sister of the Strepsirrhini. ![]()
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