Copulation in the land snail Satsuma (Luchuhadra) amanoi

Failed copulation in the land snail Satsuma (Luchuhadra) amanoi

Copulation in the peregrine falcon Falco peregrinus

Copulation in the Spot-billed Duck, Anas poecilorhyncha

Copulation in a horse fly

Copulation in Pugettia quadridens quadridens

The copulation of guppy

copulation

copulation

Ladybug's Copulation

Rejection of copulation

Copulation of Vespa simillima

cat's copulation

cat's copulation

Failure in interspecific copulation of Apid bees

Acceptance of copulation

Coercive copulation of guppy

Attempted copulation of cat

copulation of Japanese macaques I

copulation of Japanese macaques II

Copulation of rabbits

Rejection of copulation of the Eastern Pale Clouded-Yellow Colias erate

Courtship and copulation behavior of firefly, Luciola cruciata

Mating in the water flea, Daphnia magna

A buck in the mating season