Courtship behavior in the Cardinalfish, Apogon niger

Courtship behavior in the Rock Pigeon Columba livia

Courtship behavior of the Common Moorhen

Courtship behavior of Smews

Courtship behavior of a male Bengalese finch

Courtship and mating behavior of Bengalese finch

Courtship behavior of the spider, Cyclosa octotuberculata

Courtship and navigation behavior of three-spined stickleback Gasterosteus aculeatus

Salmon courtship behavior (image from directly above)

Courtship behavior of Waved Albatross

Courtship behaviour of the freshwater goby Tridentiger brevispinis

Courtship behaviour of the freshwater goby Rhinogobius sp. YB

Courtship in the Japanese rice-fish

Courtship behaviour by carabid beetle

Salmon quivering behavior

Courtship in the bull-headed shrike Lanius

Courtship in the water strider Gerris elomgatus

Courtship and spawning behavior of bluegill

Courtship behaviour of red-eared slider

Courtship behaviour of japanese pond turtle

Courtship display of male guppy

Hindquarters display: courtship display by the male Japanese macaque

Male-male sexual behavior in Cobitis magnostriata

Courtship and copulation behavior of firefly, Luciola cruciata

Courtship in a rhinoceros beetle