Leptodactylus pentadactylus, the smokey jungle frog

Moth, Stillwater, OK

Deer skeleton, McPherson Pond

Protecting birdfeeders from squirrels for cognitive testing in the wild.

Metamorphosis

Common frog spawn in County Cork, Ireland

Killarney National Park, field site for songbird cognition studies

A blue tit nest, from studies of bird cognition and breeding in County Cork, Ireland

Heavy bullfrog, McPherson Pond

Mating pair of Hypsiboas rufitelus at La Selva, Costa Rica

An amazing glass frog in Costa Rica

Cantarrana (singing frog) swamp, La Selva, Costa Rica

Mating cricket frogs, Stillwater, OK

Territorial response of a male great tit to a speaker broadcasting an intruder song

Water snake at McPherson pond

Moon over McPherson

Calling male Hyla chrysoscelis

Studying cognition in wild songbirds in the famous Wytham Woods

Red eyed treefrogs, Agallychnis callidryas, in Costa Rica

Toad explosion, McPherson Pond

Grasshopper collection site in Germany

Female Dendropsophus ebraccatus in Costa Rica

Cruziohyla calcarifer at La Selva, Costa Rica

Bullfrog in Missouri