While analytical methods portray skeletal sex differences as almost purely binary (female or male), a person's sex—including ...

A male (silver) and female (brown) common European adder meet prior to mating. Scientists are just beginning to understand female sexual anatomy in snakes. David Tipling / Education Images / Universal ...

Boston)—Human skeletal biologists traditionally provide sex estimations as a part of establishing biological profiles (skeletal sex, age-at-death ...