A male baikal teal following a female with calling

A male baikal teal displaying head-pumping in front of a female

Male three-spined stickleback Gasterosteus aculeatus under fanning turned out a female

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

female presenting to male

A male Red Ring Skirt (Hestina assimilis) tried unsuccessfully to mate with a female feeding on tree sap

Female cat solicits male

Encountering when a male visited the territory of a female

A male fiddler crab captured a female and took her into his burrow

Courtship display of male Northern Pintails, and submerging of a female for escape

Perching-position change in the calling male cicada (Oncotympana maculaticollis)

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

Male three-spined stickleback chasing a female out of the territory

Unhappy interaction between male and female fiddler crab: vol.2

Unhappy interaction between male and female fiddler crab: vol.1

Struggle to dislodge in a heterospecific mating pair consisting of a female Drosophila santomea and male a D. yakuba

Egg-laying of a male-colored female common skimmer

A solo song of the male gibbon playing with his son

Mating behavior of the white-spotted longicorn beete, Anoplophora malasiaca.-1. Male mating trial to a glass-rod treated with female pheromonal extract

Nest fixing with the kidney secretion of a male three-spined stickleback Gasterosteus aculeatus

A male northern pintail tickling other individuals' sides with his beak

A pair of Baikal teal, swimming, walking across a promenade, climbing a slope, and eating acorns in an oak forest

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

Indiscriminate consumption of unrelated eggs by a gravid female and a satellite male in natural nests

アメンボの体のそうじ（オスを背負い、定位行動を示しながら）