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African bullfrog (Pyxicephalus adspersus)

African bullfrog
African bullfrogAfrican bullfrog
Personal information
There is one African bullfrog at the Zoo. It is the largest amphibian found in southern Africa and the second largest African frog.

Status in the wild
International Union for the Conservation of Nature status: Least concern. Although it is losing breeding habitat in places due to urbanization and is also eaten by humans in parts of its range, it has a wide distribution and is tolerant to a broad range of habitats.

Habitat
Habitat is usually drier savannas in large pans that fill with water during rains, but it is also found in the Kalahari Desert and the sand-swept regions of central Namibia as well as the highveld domains (4,000 to 6,000 feet above sea level) in the Transvaal (high altitude grasses plains area in South Africa). When the rainy season begins, they occupy temporary floodplains and rapidly drying puddles scattered around the African countryside.

Diet
Invertebrates, reptiles, rodents, small birds and amphibians. African bullfrogs consume nearly any animal that can be overpowered and can fit in their huge mouths.
  • The mating and territorial call is a long, low frequency “whoop”, also called booming, 1–2 seconds in duration and with an emphasized frequency of 200–250 Hz.  Only males call.
  • African bullfrogs are ambush predators.  They sit partially buried with snouts exposed, waiting for some unsuspecting animal to wander by.  When prey comes within range, an African bullfrog will drop its lower jaw forcefully, unfolding its tongue, and snatch its meal. 
  • The males exhibit parental care.  They watch over and defend the eggs and tadpoles.  They have been known to jump at things they regard to be a threat.