Male-male combat of Otton frogs
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Major cheliped use in intruder male during male-male contest of hermit crab
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male competition of Japanese scorpionfly
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male agonistic behavior of Carrhotus xanthogramma
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male fighting of northern elephant seals
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Major cheliped use in owner male during male-male contest of hermit crab
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male agonistic behavior of Sitticus penicillatus (2)
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male agonistic behavior of Sitticus penicillatus (3)
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male agonistic behavior of Sitticus penicillatus (1)
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male fighting of Harbor seals 1
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male fighting of Harbor seals 2
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male competition in Uca arcuata
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male fighting in a butterfly
Osaka Museum of Natural History
Movie Archives of Animal Behavior
male presenting to male
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male fighting behavior of the seed bug, Togo hemipterus
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male-male sexual behavior in Cobitis magnostriata
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Suffering of a small male
Osaka Museum of Natural History
Movie Archives of Animal Behavior
The re-invasion behavior of Japanese scorpionfly males that lost the male-male competition
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Flight of a Morpho amathonte male
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Female fighting of Dorcus rectus rectus
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Male competition of the field cricket
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Territorial defense of male three-spined stickleback Gasterosteus aculeatus
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Egg care of male three-spined stickleback Gasterosteus aculeatus
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Interruption of copulation by an intruding male
Osaka Museum of Natural History
Movie Archives of Animal Behavior
Last Updated: 2025-07-01
Uploaded: 2025-07-02