Adélie penguin: Homosexual couples
Mangrove killifish: Reproducing with itself
Duck-billed dinosaur: Bias in names
New Mexico whiptail lizard: Parthenogenesis
Morpho butterfly: Divided down the middle
Western lowland gorilla: Queer behavior in apes
Domestic sheep: Can animals be gay?
Saharan cypress: Androgenesis
Bicolor parrotfish: Sex-fluid fishes
Swans: Male couples as parents
Green sea turtle: Temperature-dependent sex determination
Giraffe: Homosexuality in the mainstream
Common ash: Sexual spectrum
Common cockchafer: Historical homosexuality
European eel: Environment-dependent sex determination
White-throated sparrow: Beyond the binary
Spotted hyena: Female-led societies
Western gull: Lesbian mothers
Common bottlenose dolphin: Explaining the gay away
Common pill woodlouse: Bacteria-dependent sex determination
Bluegill sunfish: Do animals have gender?
Common pheasant: Out-sized influence
Splitgill mushroom: Thousands of sexes
Chinese shell ginger: Temporal sex
Cane toad: Intersex animals
Moss mites: Ancient asexuals
Dungowan bush tomato: Changeable sex
Barklice: Sex-reversed genitals.