Starry Night Reed Frog
David Kenny
European Treefrog #1
Reiner Bernhardt
Pac Man Frog Ceratophrys
David Kenny
Giant Asian Toad #2
Frank Teigler
Eastern Wood Frog #1
Ted Kinsman
African Clawed Frog Tadpole #4
Dante Fenolio
Southern Toad Bufo Terrestris #5
Millard H. Sharp
Giant Asian Toad
Frank Teigler
Strawberry Poison Dart Frog #1
B.G. Thomson
Pac Man Frog Ceratophrys #3
David Kenny
Pac Man Frog Ceratophrys On A Rock
David Kenny
Northern Leopard Frog
Gregory K. Scott
Colorado River Toad
Karl H. Switak
Blue Poison Dart Frog Dendrobates
Dennis Flaherty
African Clawed Frog Tadpole #7
Dante Fenolio
White-lipped Green Tree Frog
BG Thomson
Masked Treefrog
Gregory G. Dimijian, M.D.
Dendrobates Azureus
David Kenny
Amazon Poison Arrow Frog
Steve Cooper
African Bullfrog
Frank Teigler
Spiny Glass Frog #2
Dante Fenolio
Northern Red-legged Frog
Stuart Wilson
Pac Man Frog Ceratophrys #4
David Kenny
Red-eyed Treefrog #6
Millard H Sharp
Tungara Frog Vocalizing #1
Gregory G. Dimijian, M.D.
Fowlers Toad
Lynda Richardson
Mating American Toads
Jeffrey Lepore
Poison Frogs On Bromeliad
Art Wolfe
Cane Toad Eye
Dante Fenolio
Golden Toads Mating
Gregory G Dimijian MD
Red Eye Tree Frog #2
Millard H. Sharp
Noras Spiny Chest Frog #1
Danté Fenolio
African Bullfrog Or Giant Pyxie
M. Watson
Masked Treefrog
Gregory G Dimijian
Southern Toad Bufo Terrestris #1
Millard H. Sharp
Marbled Wood Frog #2
Danté Fenolio
Rosy Ground Frog #3
Danté Fenolio
Horned Frogs
Michel Gunther
Mimic Poison Arrow Frog #4
Francesco Tomasinelli
Giant Monkey Frog Phyllomedusa Bicolor #1
Danté Fenolio
American Bullfrog X-ray
Ted Kinsman
Crowned Poison Frog #1
Dante Fenolio
Vaillantis Monkey Frog #1
Dante Fenolio
Giant Monkey Frog #1
Dante Fenolio
Rusty Robber Frog
Dante Fenolio
Large Arboreal Hylid Frog
Dante Fenolio
White Spotted Glass Frog
Dante Fenolio
Funnel Nest Of Frogs Eggs
Dante Fenolio
Crowned Poison Frog #5
Dante Fenolio
Crowned Tree Frog #4
Dante Fenolio
Crowned Poison Frog #6
Dante Fenolio
Splendid Leaf Frog #1
Dante Fenolio
Crowned Poison Frog #10
Dante Fenolio
Yellow-eye Leaf Frog Tadpole
Dante Fenolio
African Clawed Frog Tadpole #5
Dante Fenolio
Anotheca Spinosa Tadpole #5
Dante Fenolio
White Spotted Glass Frog #1
Dante Fenolio
Southern Toad Bufo Terrestris #4
Millard H. Sharp
Ornate Horned Frog
Art Wolfe
Couchs Spadefoot Toad
C K Lorenz
Green Frog And Duckweed
Phil Degginger
American Bullfrog
Phil Degginger
Blue Poison Dart Frog
Roger Hall
Columbia Spotted Frog
William H. Mullins
Cane Toad
William H Mullins
European Spadefood
Benjamin Waldmann
White-lined Leaf Frog
Frank Teigler
Albino Chacoan Horned Frog
Michel Gunther
Couchs Spadefoot Toad
Anthony Mercieca
California Toad Bufo Boreas Halophilus
Anthony Mercieca
Pine Barrens Tree Frog Hyla Andersonii
John Serrao
Frog, Historiae Animalium, 16th Century
Science Source