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| American bullfrog | |
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| adult male | |
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| Rana catesbeiana (Shaw, 1802) | |
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| Native range Range as an invasive species | |
The American bullfrog (Rana catesbeiana or Lithobates catesbeianus) is a semi-aquatic frog. It belongs to the family Ranidae, or 'true frogs'. Bullfrogs are native to most of North America, Canada and Mexico. The ones that live in northern America hibernate during winter. However, bullfrogs in southern US states are active all the time. Bullfrogs have been seen in South America, Asia, Western Europe and the Caribbean. These bullfrogs were brought on ships. Many people, including pet owners, have placed bullfrogs outside of their native area. They have done this: on purpose because they no longer want them, to control the pest population, or by accident by catching them in fishing nets.
Bullfrogs can adapt and live almost anywhere if there is water nearby. They can eat rodents, insects, small fish, arachnids, small birds, crustaceas, small mammals, worms, and other frogs. Because of this, they have been blamed for many animal extinctions. Bullfrogs live in large bodies of water such as swamps, lakes, and ponds. They like to stay near the edge of the water. During a rainstorm, they may travel on land. They travel in search of a new habitat.
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