The claim that 90 percent of giraffes are gay is probably based on a statement made in the 1999 book by Canadian biologist Bruce Bagemihl, Biological Exuberance: Animal Homosexuality and Natural Diversity.9 This book provided evidence that “polysexual” behavior is common in the animal kingdom, and claimed that it had been found in more than 450 species of mammals, birds, reptiles, insects, and other animals. For humans, the term polysexual means attraction to more than one gender and is under the bisexual umbrella. In animals, it refers to sexual behavior of animals toward more than one sex.
