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Bullfrog (Rana catesbeiana) Small rear legs visible Allegeny County, NY USA: Date: 7 October 2011, 11:12: Source: American Bullfrog, tadpole stage (Rana catesbeiana) Author: Dave Huth from Allegany County, NY, USA
The American bullfrog (Lithobates catesbeianus), often simply known as the bullfrog in Canada and the United States, is a large true frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps , ponds , and lakes .
Subgenus Aquarana (North American water frogs) Rana catesbeiana Shaw, 1802 – American bullfrog; Rana clamitans Latreille, 1801 – green frog, bronze frog, northern green frog; Rana grylio Stejneger, 1901 – pig frog; Rana heckscheri Wright, 1924 – river frog; Rana okaloosae Moler, 1985 – Florida bog frog; Rana septentrionalis Baird ...
Aug. 27—For the fourth time, hundreds of endangered frogs were released into the Columbia National Wildlife Refuge with the intent to revitalize their population. The nearly 400 northern leopard ...
A tadpole or polliwog (also spelled pollywog) is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails.
The cane toad (Rhinella marina) has been known to survive 24 years in captivity, and the American bullfrog (Rana catesbeiana) 14 years. [171] Frogs from temperate climates hibernate during the winter, and four species are known to be able to withstand freezing during this time, including the wood frog ( Rana sylvatica ).
The tadpole's head and most of its body are preserved. Frogs have a two-stage life cycle, with the aquatic tadpole larva metamorphosing into the adult form. This tadpole was in the late stages of ...
The American bullfrog (Lithobates catesbeianus), often simply known as the bullfrog in Canada and the United States, is a large true frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps , ponds , and lakes .