Male-male sexual behavior in Cobitis magnostriata

Reproductive behaviors of Cobitis magnostriata in the field

The responses of the male of Cobitis magnostriata to the vibrating finger

Courtship behavior of a male Bengalese finch

Chasing and sneaking behavior of male Japanese bitterling

Courtship behavior of male red-eared sliders and female rejection response

Hindquarters display: courtship display by the male Japanese macaque

Courtship behavior in the Cardinalfish, Apogon niger

Interruption of courtship behavior of male three-spined stickleback Gasterosteus aculeatus

Courtship behavior in the Rock Pigeon Columba livia

Salmon quivering behavior

Courtship and mating behavior of Bengalese finch

Courtship behavior of Smews

Courtship behavior of the Common Moorhen

Courtship display of male guppy

Mating behavior and sexual cannibalism in Cyclosa argenteoalba

A male three-spined stickleback Gasterosteus aculeatus refused the courtship from a female

Homo-sexual behaviour in a dolphin 3

Homo-sexual behaviour in a dolphin 1

Homo-sexual behaviour in a dolphin 2

Courtship behavior of female three-spined stickleback Gasterosteus aculeatus (2)

Major cheliped use in intruder male during male-male contest of hermit crab

Courtship and navigation behavior of three-spined stickleback Gasterosteus aculeatus

Male-male combat of Otton frogs

Male-male combat of Otton frogs II