Defense behaviors of nest-holding males against sneaker males in dusky frillgoby Bathygobius fuscus

Sperm release behavior of the dusky frillgoby Bathygobius fuscus males

Foraging behavior of a goby, Bathygobius fuscus, in a tide pool

Nest defence against a brood parasite by a male Japanese bush warbler

Fanning behavior and repair of nest in three-spined stickleback Gasterosteus aculeatus

Nest defence against a brood parasite by a female Japanese bush warbler

Agonistic bahavior between males of domestic cats in the forest

The re-invasion behavior of Japanese scorpionfly males that lost the male-male competition

Jacknife clam jumping out from nest in response to salt inroad

Observation record of a male Ashy Minivet Pericrocotus divaricatus divaricatus carrying nest materials into the nest of Asian Brown Flycatchers Muscicapa dauurica in Hokkaido, northern Japan

Predation avoidance of larval Osmylus hyalinatus(Neuroptera: Osmylidae) against the forager of the ant Formica japonica

Predation avoidance of larval Osmylus hyalinatus (Neuroptera: Osmylidae) against the newt Cynops pyrrhogaster

Predation avoidance of larval Osmylus hyalinatus (Neuroptera: Osmylidae) against the fishfly Parachauliodes japonicus

Predation avoidance of larval Osmylus hyalinatus (Neuroptera: Osmylidae) against the froglet Glandirana rugosa

Field observation of escape behaviour with inking in the Japanese pygmy squid (S-stop)

Field observation of escape behaviour with inking in the Japanese pygmy squid (C-change)

Killer whales hunting a dolphin in Hokkaido, Japan

Mating Behavior of Typopeltis stimpsonii in the habitat

Bark carving behavior of the Japanese horned beetle

Spawning behavior of the Far Eastern catfish, Silurus asotus in paddy fields

Spawning behaviour of Pseudogobio esocinus (Cypriniformes, Cyprinidae) in an experimental tank

Inking for predation in Idiosepius hallami

Predation behaviour of a Hydaticus bowringii adult on a frog egg

Larval picking behavior inducing stomodeal trophallaxis by workers in Reticulitermes speratus

Feeding of a pelican to gulls