Territorial contest in a dragonfly

Territorial contest in male Chrysozephyrus smaragdinus

ゴクラクハゼ縄張り争い

カワセミの縄張り争い

ウグイスの縄張り争い

Territorial disputes of a monogamous butterflyfish

Streaking by non-territorial male of P.aurigarius

Pair spawning by territorial male of pteragogus aurigarius

Group　spawning by non-territorial male of P.aurigarius

イタセンパラと国内外来種カネヒラの縄張り争い

Monkey studying a dragonfly in his hand

Major cheliped use in owner male during male-male contest of hermit crab

A Toy Drum in the Design of a Papier-mâché Dog

Major cheliped use in intruder male during male-male contest of hermit crab

Tsuba with a Cricket and Dragonfly in Bush Clover

ゼゼラの縄張り行動

セボシタビラの縄張り行動④

セボシタビラの縄張り行動

カネヒラの縄張り行動

ヤリタナゴの縄張り行動

キタノアカヒレタビラの縄張り行動⑧

モツゴの縄張り行動

アカヒレタビラの縄張り行動④

アカヒレタビラの縄張り行動⑪

ヒガイの縄張り行動