Waving behaviour of a fiddler crab, Uca lactea lactea
Circular waving of Uca lactea
Lateral-flick waving of Uca lactea
Lateral-circular waving of Uca lactea
Rapid-vertical waving of Uca lactea
Surface mating of a fiddler crab, Uca lactea
Male-male competition in Uca arcuata
Unhappy interaction between male and female fiddler crab: vol.2
Unhappy interaction between male and female fiddler crab: vol.1
Major cheliped use in owner male during male-male contest of hermit crab
Major cheliped use in intruder male during male-male contest of hermit crab
Four Circles in Fight
Male-male fighting in a butterfly
Male-male sexual behavior in Cobitis magnostriata
A male fiddler crab captured a female and took her into his burrow
Fight in a fly Ochthera sp
Haniwa male figure
オナガガモのけんか
Haniwa male figure in armor
Mouth-wrestling in male butterflyfish
Male-male competition for eggs in the filefish Rudarius ercodes
Quarrel over a Backgammon Game
Quarrel over a Backgammon Game
Two Male Nudes in a Landscape
Last Updated: 2025-07-01T01:05:07
Uploaded: 2025-07-02