Fight of sand bubbler crab Scopimera globosa

Waving behavior of sand bubbler crab Scopimera globosa

Feeding behavior of sand bubbler crab Scopimera globosa

Fight, Asakusa

Play, fight, and intervening behavior of puppies

Competition of Aphid parasitoids

Competition of citrus red mite

Aggressive interaction between mutilated workers of Diacamma sp. from Japan

Fight of hummingbird

Snowstorm of Sand Dune

Thirst of Sand and Water

shell fight of hermit crabs

子どものケンカ

Foraging behavior of rocky reef crab

Like grains of sand

Waving behavior of fiddler crab Ilyoplax pusilla

Waving behavior of ocypodid crab Macrophthalmus japonicus

Testing and Copulation of Crab-eating Macaque

Bathing of Crab-eating Macaques　（Slow Motion）

Feeding behavior of porcelain crab, Petrolisthes japonicus

Competition for mate in male striped eel catfish

Sparrow fight

Foraging behavior of the hermit crab, Pagrus filholi

Spawning of the red claws crab, Sesarma haematocheir

Aggressive dash of a fiddler crab Ilyoplax pusilla