Biological Exuberance: Animal Homosexuality and Natural Diversity

individual and/or population differences

language

rituals

taboos

tool use

see also: Ritualized interactions

cummings, e. e.

Cunnilingus see Oral stimulation

Dagg, Anne Innis

Darling, James

Daycare see Alloparenting; Creches

Delayed implantation

Differences between homosexual and heterosexual behaviors

courtship mammals birds

pair-bonding (including same-sex pairing in species without opposite-sex pairing) marine mammals hoofed mammals other mammals birds

parenting (including same-sex coparenting in species without opposite-sex coparenting) mammals birds

sexual behaviors primates marine mammals hoofed mammals other mammals birds

see also Duration of homosexual interactions

Dildos see Cultural behavior—tool use

Divorce, separation, mate-switching (heterosexual)

mammals

waterfowl

shore birds

perching birds

other birds

Divorce, separation, mate-switching (homosexual)

birds: waterfowl shore perching other

Dominance see Explanations

Donaldson, Stephen

Douglas, Lord Alfred

Dynes, Wayne

Duration of homosexual interactions

mammals: primates marine hoofed other

birds: shore perching other

Duration of homosexual pair-bonds

long-term

mammals: primates marine hoofed other

birds: waterfowl shore perching other

short-term

mammals: primates marine hoofed other

birds: waterfowl shore perching other

Eaton, G. Gray

Edwards, George

Egg destruction, abandonment (heterosexual)

birds: waterfowl shore perching other

Egg/nestling transfer see Parasitism

Egg-stealing see Kidnapping; Sources of offspring

Einstein, Albert

Ejaculation see Orgasm