Copulation in the Spot-billed Duck, Anas poecilorhyncha

Parental vigilance of a resting young in the Spot-billed Duck, Anas poecilorhyncha

Spot-Billed Duck, Parent and Ducklings

Chicks of eastern spot-billed duck diving and swimming underwater

A rail (Gallinula chloropus indica) chasing a Spot-billed Duck

Eastern Spot-billed Duck and juveniles

Copulation in the peregrine falcon Falco peregrinus

Copulation in the land snail Satsuma (Luchuhadra) amanoi

Eastern Spot-billed Duck, scratching and preening

Copulation in a horse fly

Copulation in Pugettia quadridens quadridens

Eastern Spot-billed Duck and juveniles moving to the water

Failed copulation in the land snail Satsuma (Luchuhadra) amanoi

The copulation of guppy

copulation

copulation

Ladybug's Copulation

Grey duck feeding

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