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
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Jabruson / African bullfrog {Pyxicephalus flavigula} Tsavo East NP, Kenya
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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...
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Jabruson / African bullfrog {Pyxicephalus flavigula} eating mouse. Tsavo East NP, Kenya
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Piotr Naskrecki / Edible Bullfrog (Pyxicephalus edulis) tadpoles, Gorongosa National Park, Mozambique
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males calling in water, Central Kalahari Game Reserve. Botswana
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males calling in water, Central Kalahari Game Reserve, Botswana
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Brian Bevan / African bullfrog (Pyxicephalus adspersus) feeding on a locust, UK. Captive, native to Africa.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) female with much larger male in the background, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) pair in amplexus with female raising hind legs above the water to release her eggs, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) in pond, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) male calling with vocal sac inflated, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) pair in amplexus, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) pair in amplexus, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males in pond, waiting for females to arrive, with one pair in amplexus.Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) male calling, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / Photographer Chris Fallows taking pictures of African giant bullfrog (Pyxicephalus adspersus) Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) tadpoles in water, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) male in pond, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) male in pond, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) male calling in pond, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Chris & Monique Fallows / African giant bullfrog (Pyxicephalus adspersus) males fighting over female, Central Kalahari Game Reserve. Botswana.
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Jen Guyton / African bullfrogs (Pyxicephalus edulis) tadpoles in newly formed pool, with dead winged Termite (Amitermes) Gorongosa National Park, Mozambique
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Jen Guyton / African bullfrogs (Pyxicephalus edulis) male calling for a mate, Gorongosa National Park, Mozambique
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Jen Guyton / African bullfrog (Pyxicephalus edulis) male calling for mate in newly formed seasonal pond, Gorongosa National Park, Mozambique
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Chris Mattison / South African Dwarf Bullfrog (Pyxicephalus edulis) native to Southern Africa.
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Chris Mattison / South African Dwarf Bullfrog (Pyxicephalus edulis) on white background, captive occurs in Southern Africa.
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Chris Mattison / South African Dwarf Bullfrog (Pyxicephalus edulis) on white background, captive, occurs in Southern Africa.
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LYNN M. STONE / African Bullfrog (Pyxicephalus adspersus) captive, a somewhat unusual frog because the male of the species is much larger than the female, weighing up to 2 kg, native to wide range of habitats in sub-...
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Michael D. Kern / African Bull Frog / Pixie Frog (Pyxicephalus adsperus) captive from Southern Africa
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Michael D. Kern / Giant pixie frog / African bullfrog (Pyxicephalus adspersus) captive, from Africa
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Thomas Marent / African Bullfrog (Pyxicephalus adspersus) in mud, introduced species, Ankarana Special Reserve, Madagascar
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Thomas Marent / African Bullfrog (Pyxicephalus adspersus) in mud, introduced species, Ankarana Special Reserve, Madagascar
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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
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Tony Phelps / African bullfrog {Pyxicephalus adspersus} Pretoria, South Africa
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Tony Phelps / African bull frog {Pyxicephalus adspersus} in aestivation, Gauteng, South Africa
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Jabruson / African bullfrog {Pyxicephalus flavigula} emerging from burrow, Tsavo East NP, Kenya
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Nature Production / African Bullfrog {Pyxicephalus adspersus} captive
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Barry Mansell / African bullfrog portrait (Pyxicephalus adspersus) Africa, captive
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Jabruson / African bullfrog {Pyxicephalus flavigula} emerging from burrow after rain, Tsavo East NP, Kenya
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Jabruson / African bullfrog {Pyxicephalus flavigula} feeding on mouse, Tsavo East NP, Kenya
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Gerry Ellis / Tremolo Sand Frog (Tomopterna cryptotis) among leaves on rainforest floor, Matetsi safari area, Zimbabwe
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Paul Souders/ Worldfoto / African Bullfrog (Pyxicephalus adspersus) sub-adult in waterhole, Nxai Pan National Park, Botswana
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Piotr Naskrecki / Edible Bullfrog (Pyxicephalus edulis), Gorongosa National Park, Mozambique
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Piotr Naskrecki / Edible Bullfrog (Pyxicephalus edulis) tadpoles, Gorongosa National Park, Mozambique
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Piotr Naskrecki / Edible Bullfrog (Pyxicephalus edulis) male calling, Gorongosa National Park, Mozambique
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Piotr Naskrecki / Edible Bullfrog (Pyxicephalus edulis) female laying eggs, Gorongosa National Park, Mozambique
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis) pair, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Tremolo Sand Frog (Tomopterna cryptotis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis), Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis) in waterhole, Marakele National Park, Limpopo, South Africa
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Pete Oxford / Edible Bullfrog (Pyxicephalus edulis), Marakele National Park, Limpopo, South Africa
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Daniel Heuclin / African bullfrog (Pyxicephalus adspersus) captive from South Africa
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Chris Mattison / South African dwarf bullfrog (Pyxicephalus edulis) sitting in water, South Africa.
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Mark Taylor / RF - African bullfrog (Pyxicephalus adspersus), mouth open. Captive, occurs in Africa. (This image may be licensed either as rights managed or royalty free.)
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Mark Taylor / RF - African bullfrog (Pyxicephalus adspersus), walking. Captive, occurs in AFrica. (This image may be licensed either as rights managed or royalty free.)
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Mark Taylor / African bullfrog (Pyxicephalus adspersus), occurs in Africa.
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Mark Taylor / African bullfrog (Pyxicephalus adspersus), taking a mealworm. Occurs in Africa.
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Mark Taylor / African bullfrog (Pyxicephalus adspersus), walking. Captive, occurs in Africa.
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Mark Taylor / African bullfrog (Pyxicephalus adspersus). Captive, occurs in Africa.
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Brian Bevan / Slow motion clip of an African bullfrog (Pyxicephalus asperses) eating locust, retracting eyes whilst swallowing, UK. Captive, native to Africa.
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Brian Bevan / Slow motion clip of an African bullfrog (Pyxicephalus asperses) eating locust, retracting eyes whilst swallowing, UK. Captive, native to Africa.