Homosexual necrophilia in the Sand Martin

Homosexual necrophilia in the Sand Martin

Possible feeding on roadkilled carcasses by the Okinawa Rail (Hypotaenidia okinawae)

(Women on the Sand)

Approach with stalking by the male to the female in Microvelia horvathi Lundblad, 1933

シロスジカノコハエトリ C.ogatai オスによるメス死体への求愛・交接

Mating in the water flea, Daphnia magna

Copulation in the peregrine falcon Falco peregrinus

A buck in the mating season

Copulation in the Spot-billed Duck, Anas poecilorhyncha

Copulation in the land snail Satsuma (Luchuhadra) amanoi

Love Buried in the Sand

Deer bucks moving in the mating season

Male-male competition for eggs in the filefish Rudarius ercodes

Alternative male mating behaviors dependent on relative body size in the oval squid

Mating in the Japanese rice-fish (5)

Mating in the Japanese rice-fish (1)

Mating in the Japanese rice-fish (3)

Mating in the Japanese rice-fish (4)

Mating in the Japanese rice-fish (2)

Christ Enthroned (after Martin Schongauer)

Failed copulation in the land snail Satsuma (Luchuhadra) amanoi

Inking during copulation in Idiosepius hallami

Failure in interspecific copulation of Apid bees

同性個体とつがい外交尾を行うアデリーペンギン