ANT211H5 Chapter Notes - Chapter 7: Fisherian Runaway, Amotz Zahavi, Ronald Fisher
Document Summary
Truth in advertising the evolution of body signals. Signals are essential to animal communication that is, the process by which one animal alters the probability of another animal behaving in a way that may be adaptive to one or both individuals. Signals of humans and other animals have evolved through natural selection. Among the most familiar to us, animals use auditory signals, such as the territorial songs by which birds attract mates and announce possession to rivals, or the alarm calls to warn others. Olfactory signals are used by many mammals to mark a territory and ants to mark a trail to a food source. Females of many primate species advertise their time of ovulation by swollen, brightly coloured skin on the buttocks or around the vagina. Three competing theories attempt to account sexual signals: sir ronald fisher runaway selection model.
