Bruce Bagemihl
Biological Exuberance: Animal Homosexuality and Natural Diversity
$34.99
Eliot Schrefer
Queer Ducks (and Other Animals): The Natural World of Animal Sexuality
$17.99
Ingram
S=ex²: The Science of Sex
$37.99
The Myth of Monogamy: Fidelity and Infidelity in Animals and People
$20.99