Diversity in Signal Forms Both Between and Within Species Can

Q24: Zahavi (1975, 1977) suggested that if a

Q25: Vasodilation, changes in respiration, and piloerection are

Q26: Behaviors that have become freed from the

Q27: We expect the coordination of mating activities

Q28: Huxley (1923) suggested that many signals get

Q30: Herbert Terrace was highly critical of the

Q31: Chimpanzees Washoe, Sarah, and Lana were all

Q32: Factors that favor an honest communicative signal

Q33: Dawkins and Krebs (1978) suggested that animals

Q34: Since carotenoids cannot be synthesized by vertebrates,