Emanuele Biggi / Sand frog (Tomopterna sp.) found in one of the rare rain ponds along a dry stream, Brandberg area, Namibia.
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Chris Mattison / Gray's Stream frog (Strongylopus grayii), Cederberg Mountains, near Clanwilliam, South Africa
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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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Michael Hutchinson / Cape river frog (Amietia fuscigula) resting on rock, Cederberg, South Africa, December.
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Michael Hutchinson / Cape river frog (Amietia fuscigula) resting near waterfall, Cederberg, South Africa, December.
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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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Ann & Steve Toon / Cape river frog (Amietia fuscigula), Harold Porter Botanical Gardens, Western Cape, South Africa, February.
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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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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.