Rolf Nussbaumer / RF- Bullfrog (Rana catesbeiana) adult on American lotus lilypad. Welder Wildlife Refuge, Sinton, Texas, USA. (This image may be licensed either as rights managed or royalty free.)
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Pete Oxford / Smokey Jungle Frog (Leptodactylus pentadactylus), Yasuni National Park, Amazon, Ecuador
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Rolf Nussbaumer / RF- Head portrait of Bullfrog (Rana catesbeiana) partially submerged in lake, Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA. (This image may be licensed either as rights managed or royalty...
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Murray Cooper / Smokey Jungle Frog (Leptodactylus pentadactylus) camouflaged in leaf litter, Amazon, Ecuador
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James Christensen / Smokey Jungle Frog (Leptodactylus pentadactylus) with injured jaw, Colon, Panama
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Thomas Marent / American Bullfrog (Rana catesbeiana), Reserva Natural Laguna de Sonso, Colombia
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Thomas Marent / American Bullfrog (Rana catesbeiana) portrait, Reserva Natural Laguna de Sonso, Colombia
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Thomas Marent / American Bullfrog (Rana catesbeiana) portrait, Reserva Natural Laguna de Sonso, Colombia
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Thomas Marent / American Bullfrog (Rana catesbeiana) portrait, Reserva Natural Laguna de Sonso, Colombia
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Thomas Marent / American Bullfrog (Rana catesbeiana), Reserva Natural Laguna de Sonso, Colombia
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Thomas Marent / American Bullfrog (Rana catesbeiana), Reserva Natural Laguna de Sonso, Colombia
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Michael & Patricia Fogden / American Bullfrog (Rana catesbeiana) in leaf litter showing tympanum, North America
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (110mm in length) sequence 6/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (52mm in length) sequence 5/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (34mm in length) sequence 4/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (23mm in length) sequence 3/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (8mm in length) sequence 2/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (8mm in length) sequence 1/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (80mm in length) sequence 8/8
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Nature Production / Bullfrog {Rana catesbeiana} tadpole (91mm in length, with hind legs developing) sequence 7/8
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Michael & Patricia Fogden / Smokey Jungle Frog (Leptodactylus pentadactylus) predating Masked Puddle Frog (Smilisca phaeota), Costa Rica
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Michael & Patricia Fogden / Smokey Jungle Frog (Leptodactylus pentadactylus) tadpoles eating eggs of Tarraco Treefrog (Smilisca phaeota) in rainforest, Costa Rica
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Jim Brandenburg / American Bullfrog (Rana catesbeiana) at edge of lake, Minnesota
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ZSSD / American Bullfrog (Rana catesbeiana) albino in water, North America
