Brown booby（Sula leucogaster）カツオドリ

Japanese Wood Pigeon アカガシラカラスバト

Eastern Buzzard (Buteo japonicus toyoshimai Momiyama, 1927) オガサワラノスリ

Bonin flying fox (Pteropus pselaphon) eating Screw pine fruit タコノキの実を食べるオガサワラオオコウモリ

Bonin flying foxes swarming around the Screw pine fruit タコノキの実に群がるオガサワラオオコウモリ

One night in Ogasawara: Breeding behavior of the Cane toads

Clasping of Cane toads オオヒキガエルの包接

Copulation of Green anole グリーンアンールの交尾

Dewlap extention in Green anole (Anolis carolinensis) グリーンアノールにおけるデューラップ（咽喉垂皮）の伸展

Ogasawara snake-eyed skink basking in the sun 日光浴をするオガサワラトカゲ

Mouring gecko on the veranda ベランダのオガサワラヤモリ

Mouring gecko (Lepidodactylus lugubris) and her eggs オガサワラヤモリとその卵

Ogasawara snake-eyed skink (Cryptoblepharus nigropunctatus) オガサワラトカゲ

Snake on the Kanda River 神田川のヘビ（アオダイショウ）

Flying Tadpoles

The smallest yawn

Cane Toad Feast オオヒキガエルの饗宴

Cane Toads vs Termites オオヒキガエル vs シロアリ

Cane Toad Landing オオヒキガエルの上陸

Cane toad tadpoles in Ogasawara islands

Embryogenesis in Cane Toad

Relation between yawn and breathing in giant salamander

Japanese giant salamander yawn. Part II

小笠原村父島の製氷海岸の魚たち　Fish in the Seihyo-Kaigan (ice making coast) of Chichijima, Ogasawara Vill.

Sea urchins of the Ogasawara Islands 小笠原のウニ

Respiration and Excretion of Black Sea Cucumber (Holothuria atra)

Contagious yawning in Atlantic wolffish

Is moray yawn contagious?

Yawning grouper

Gill ventilation and buccal oscillation of Cane toad tadpole

Breathing of pre- and post- metamorphosis of Cane toad

Cane toads waiting for flying insects

Cane toad (Rhinella marina) eating termites.

Cane toads eating termites

Cane toads on the road　路上のオオヒキガエル

Cane toad (Rhinella marina): tadpoles and adult frogs

Cane toad tadpoles

Suprised Budgett's frog (Lepidobatrachus laevis).

Air breathing of lungfish

Sea cucumber breathing

Respiration of cuttlefish (Sepia)

Iguana yawn

Spot-billed duck parent and child カルガモ親子

Toad spawning, Spring has come ヒキガエルの産卵, 春が来た

神津島の潮溜まり：Tide pool in the Kozu island

Toad stuck out his tongue Einstein-like.

Toad yawn

Yawning toad

Lung ventilation of African clawed frog, Xenopus laevis

Breathing of bullfrog: Lung and buccal ventilation of Rana catesbeiana

Odorrana amamiensis

Japanese Toad Yawning

Japanese Giant Salamander Yawn

Rana amamiensis on the tree

Baby toad breathing

Breathing of Bullfrog, Rana catesbeiana

Lamprey yawn ?

Yawning-like behavior of lamprey

Common Kingfisher (Alcedo atthis) vomits a pellet.

Crocodile yawning and non-yawning mouth open