Toad explosion, McPherson Pond
Deer skeleton, McPherson Pond
An amazing glass frog in Costa Rica
Mating pair of Hypsiboas rufitelus at La Selva, Costa Rica
Cruziohyla calcarifer at La Selva, Costa Rica
Calling male Hyla chrysoscelis
Red eyed treefrogs, Agallychnis callidryas, in Costa Rica
Metamorphosis
A blue tit nest, from studies of bird cognition and breeding in County Cork, Ireland
Bullfrog in Missouri
Water snake at McPherson pond
Territorial response of a male great tit to a speaker broadcasting an intruder song
Moon over McPherson
Mating cricket frogs, Stillwater, OK
Protecting birdfeeders from squirrels for cognitive testing in the wild.
Heavy bullfrog, McPherson Pond
Moth, Stillwater, OK
Common frog spawn in County Cork, Ireland
Studying cognition in wild songbirds in the famous Wytham Woods
Leptodactylus pentadactylus, the smokey jungle frog
Grasshopper collection site in Germany
Female Dendropsophus ebraccatus in Costa Rica
Killarney National Park, field site for songbird cognition studies
Cantarrana (singing frog) swamp, La Selva, Costa Rica
