Steven David Johnson:
Northern Cricket Frog (Acris crepitans)
Steven David Johnson:
Northern Cricket Frog (Acris crepitans)
Steven David Johnson:
Northern Cricket Frog (Acris crepitans)
Steven David Johnson:
Northern Cricket Frog (Acris crepitans)
Steven David Johnson:
Northern Cricket Frog (Acris crepitans) - detail
Steven David Johnson:
Northern Cricket Frog (Acris crepitans)
Steven David Johnson:
Bullfrog (Rana catesbeiana) hidden under a rock underwater at Blue Hole, Bergton, Virginia
Steven David Johnson:
Marine Toad (Bufo marinus), La Selva Biological Station, Costa Rica
Steven David Johnson:
Fitzinger's Rainfrog, La Selva Biological Station, Costa Rica
Steven David Johnson:
Litter Toad (Bufo haematiticus), La Selva Biological Station, Costa Rica
Steven David Johnson:
Bransford's Litter Frog (Eleutherodactylus bransfordii), La Selva Biological Station, Costa Rica
Steven David Johnson:
Red-eyed Leaf Frog (Agalychnis callidryas) at La Selva Biological Station in Costa Rica
Steven David Johnson:
Red-eyed Leaf Frog (Agalychnis callidryas) at La Selva Biological Station in Costa Rica
Steven David Johnson:
Frog, La Selva Biological Station, Costa Rica
Steven David Johnson:
Strawberry Poison Frog (Dendrobates pumillio), Costa Rica
Steven David Johnson:
Reticulated Glass Frog (Hyalinobatrachium valerioi) at Costa Rican Amphibian Research Center
Steven David Johnson:
The critically endangered Lemur Leaf Frog (Agalychnis lemur) at Costa Rican Amphibian Research Center
Steven David Johnson:
The critically endangered Lemur Leaf Frog (Agalychnis lemur) at Costa Rican Amphibian Research Center
Steven David Johnson:
The critically endangered Lemur Leaf Frog (Agalychnis lemur) at Costa Rican Amphibian Research Center
Steven David Johnson:
Harlequin Treefrog (Hyla ebraccata) Costa Rican Amphibian Research Center
Steven David Johnson:
Harlequin Treefrog (Hyla ebraccata) Costa Rican Amphibian Research Center
Steven David Johnson:
Strawberry Poison Frog (Dendrobates pumillio) at Costa Rican Amphibian Research Center
Steven David Johnson:
Red-eyed Leaf Frog (Agalychnis callidryas) at Costa Rican Amphibian Research Center in Siquirres, Costa Rica
Steven David Johnson:
Green frog, Blakeslee, Pennsylvania
Steven David Johnson:
Pacific Tailed Frog, Opal Creek Ancient Forest Center, Oregon
Steven David Johnson:
Coastal Tailed Frog (underwater), Opal Creek Ancient Forest Center, Oregon
Steven David Johnson:
T-rex the bullfrog, Lincoln, Oregon
Steven David Johnson:
Old Darby the blind bullfrog, Lincoln, Oregon
Steven David Johnson:
Pacific Chorus Frog tadpoles - collected from a nearly dry vernal pool and being transported to a wetter home
Steven David Johnson:
Pacific Chorus Frog tadpoles (in egg mass), Parsnip Lakes, Oregon - detail
