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bullfrog

bullfrog, common name of the largest North American frog, Rana catesbeiana. Native to the E United States, this species has been successfully introduced in the West and in other parts of the world. The body length is 4 to 8 in. (10–20 cm), and the legs may be up to 10 in. (25 cm) long. An aquatic form with fully webbed toes, the bullfrog can close its nostrils and lie at the bottom of a pond for some time. Males have a loud, booming call. Bullfrog tadpoles require two or three years to become adults. The bullfrog is the only frog whose legs are marketed in quantity for food in the United States. Several other large frogs of the genus Rana are called bullfrogs in other regions. Bullfrogs are classified in the phylum Chordata, subphylum Vertebrata, class Amphibia, order Anura, family Ranidae.

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"bullfrog." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"bullfrog." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/bullfrog

"bullfrog." The Columbia Encyclopedia, 6th ed.. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/bullfrog

bullfrog

bull·frog / ˈboŏlˌfrôg; -ˌfräg/ • n. a very large frog (genera Rana and Pyxicephalus, family Ranidae) that has a deep booming croak and is often a predator of smaller vertebrates.

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"bullfrog." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"bullfrog." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/bullfrog-0

"bullfrog." The Oxford Pocket Dictionary of Current English. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/bullfrog-0

bullfrog

bullfrog Frog found in streams and ponds in the USA; it is green or brown. The largest North American frog; it can jump long distances and gets its name from its loud bass voice. Family Ranidae, genus Rana. Length: up to 20cm (8in).

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"bullfrog." World Encyclopedia. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"bullfrog." World Encyclopedia. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/bullfrog

"bullfrog." World Encyclopedia. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/bullfrog

bullfrog

bullfrog (Rana catesbiana) See RANIDAE.

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"bullfrog." A Dictionary of Zoology. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"bullfrog." A Dictionary of Zoology. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bullfrog

"bullfrog." A Dictionary of Zoology. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bullfrog

bullfrog

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"bullfrog." Oxford Dictionary of Rhymes. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"bullfrog." Oxford Dictionary of Rhymes. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/bullfrog

"bullfrog." Oxford Dictionary of Rhymes. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/bullfrog