LYNN M. STONE / Bullfrog (Rana catesbeiana) with head sticking out above water in pond, Deep River, Connecticut, USA, July
01194570
Tony Heald / African bullfrogs {Pyxicephalus adspersus} group of males in water, Etosha NP, Namibia, January
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Tony Heald / African bullfrog {Pyxicephalus adspersus} vanquished male leaps away from fight, Etosha NP, Namibia, January
01158995
Jabruson / African bullfrog {Pyxicephalus flavigula} Tsavo East NP, Kenya
01115512
Jabruson / Bullfrog eating mouse {Pyxicepalus flavigula} Tsavo East NP, Kenya
01144365
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.)
01144367
Rolf Nussbaumer / Close-up of a Bullfrog eye {Rana catesbeiana} with head camouflaged in duckweed, Welder Wildlife Refuge, Sinton, Texas, USA.
01071808
Doug Wechsler / Bullfrog male in garden pond {Rana catesbeiana} Pennsylvania, USA.
01071804
Doug Wechsler / Bullfrog female by garden pond {Rana catesbeiana} Pennsylvania, USA
01084450
Mark Payne-Gill / African bullfrog / Giant bullfrog /Pixie frog (Pyxicephalus adspersus) male digs canal to rescue tadpoles from drying puddle, South-Africa. Second prize winner in this Wildlife Photographer of the Ye...
01102944
Jabruson / African bullfrog {Pyxicephalus flavigula} eating mouse. Tsavo East NP, Kenya
01395890
Michael D. Kern / African Bull Frog / Pixie Frog (Pyxicephalus adsperus) captive from Southern Africa
00482287
Pete Oxford / Smokey Jungle Frog (Leptodactylus pentadactylus), Yasuni National Park, Amazon, Ecuador
00480561
Chien Lee / Malaysian Bullfrog (Kaloula pulchra), Krabi, Thailand
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Chien Lee / Malaysian Bullfrog (Kaloula pulchra), Krabi, Thailand
LYNN M. STONE / Bullfrog (Rana catesbeiana) on edge of pond, Connecticut, USA
01322280
LYNN M. STONE / Bullfrog (Rana catesbeiana) on edge of pond, Connecticut, USA
01300947
Ian Lockwood / Indian bullfrog (Rana tigerina) India
01295745
Michael D. Kern / Giant pixie frog / African bullfrog (Pyxicephalus adspersus) captive, from Africa
01294190
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...
00443398
Murray Cooper / Smokey Jungle Frog (Leptodactylus pentadactylus) camouflaged in leaf litter, Amazon, Ecuador
01275530
Doug Wechsler / Bullfrog (Rana catesbeiana) male, in man-made pond, Farimount Park, Wissahickon Creek, Philadelphia, Pennsylvania, USA
01275529
Doug Wechsler / Bullfrog (Rana catesbeiana) male, in man-made pond, Farimount Park, Wissahickon Creek, Philadelphia, Pennsylvania, USA
01265327
Gerrit Vyn / Bullfrog (Rana catesbeiana) partially submerged in a pond. August. Tompkins County, New York
00434777
James Christensen / Smokey Jungle Frog (Leptodactylus pentadactylus) with injured jaw, Colon, Panama
00426174
Thomas Marent / African Bullfrog (Pyxicephalus adspersus) in mud, introduced species, Ankarana Special Reserve, Madagascar
00426173
Thomas Marent / African Bullfrog (Pyxicephalus adspersus) in mud, introduced species, Ankarana Special Reserve, Madagascar
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Thomas Marent / American Bullfrog (Rana catesbeiana), Reserva Natural Laguna de Sonso, Colombia
00426122
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
00426120
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
00423274
Michael & Patricia Fogden / American Bullfrog (Rana catesbeiana) in leaf litter showing tympanum, North America
01196644
Dave Bevan / Bullfrog (Rana catesbiana) surfacing in pond, Kent, UK, June
01194569
Tony Heald / African bullfrog {Pyxicephalus adspersus} male in water, Etosha NP, Namibia, January
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Tony Heald / African bullfrog {Pyxicephalus adspersus} Etosha NP, Namibia, January
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Tony Heald / African bullfrog {Pyxicephalus adspersus} males fighting, Etosha NP, Namibia, January
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Tony Heald / African bullfrog {Pyxicephalus adspersus} swimming, Etosha NP, Namibia, January
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Tony Phelps / African bullfrog {Pyxicephalus adspersus} Pretoria, South Africa
01187988
Tony Phelps / African bullfrog {Pyxicephalus adspersus} Pretoria, South Africa
01187974
Tony Phelps / African bull frog {Pyxicephalus adspersus} in aestivation, Gauteng, South Africa
01158993
Jabruson / African bullfrog {Pyxicephalus flavigula} emerging from burrow, Tsavo East NP, Kenya
01173162
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
01173159
Nature Production / Bullfrog {Rana catesbeiana} tadpole (23mm in length) sequence 3/8
01173158
Nature Production / Bullfrog {Rana catesbeiana} tadpole (8mm in length) sequence 2/8
01173157
Nature Production / Bullfrog {Rana catesbeiana} tadpole (8mm in length) sequence 1/8
01173164
Nature Production / Bullfrog {Rana catesbeiana} tadpole (80mm in length) sequence 8/8
01173079
Nature Production / African Bullfrog {Pyxicephalus adspersus} captive
01173140
Nature Production / Bullfrog {Rana catesbeiana} sheet of eggs on water
01173163
Nature Production / Bullfrog {Rana catesbeiana} tadpole (91mm in length, with hind legs developing) sequence 7/8
01125199
Barry Mansell / African bullfrog portrait (Pyxicephalus adspersus) Africa, captive
00511677
Michael & Patricia Fogden / Smokey Jungle Frog (Leptodactylus pentadactylus) predating Masked Puddle Frog (Smilisca phaeota), Costa Rica
01158994
Jabruson / African bullfrog {Pyxicephalus flavigula} emerging from burrow after rain, Tsavo East NP, Kenya
01159003
Pete Oxford / Indian bullfrog {Rana / Hopobatrachus tigerina} on lily pad, Perinet, E Madagascar
01158996
Jabruson / African bullfrog {Pyxicephalus flavigula} feeding on mouse, Tsavo East NP, Kenya
01071805
Doug Wechsler / Bullfrog female {Rana catesbeiana} Lafayette Hill, Pennsylvania, USA
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Jabruson / Bullfrog {Pyxicephalus flavigula} emerging from summer sleep, Tsavo NP, Kenya, East Africa
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Jabruson / Bullfrog emerging from mud and summer aestivation {Pyxicepalus flavigula} Tsavo East NP, Kenya