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Freezing North American Wood Frogs
These frogs freeze completely when winter comes, entering a hibernation period. They actually stop their heartbeat, and thaw when spring comes..
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 Growling Grass Frog These frogs vary in coloration from splendid to boring. They seem to adapt to their surroundings. The particular "Golden" color comes from yellowish accents along the sides of their bodies...surprisingly, the "golden" color really looks like 14k Gold!! Yet, this color fades and shines depending upon tank temp and mood. If they are agitated, the color is washed out. If the tank is too cold, they tu...
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 Order: Anura, Family: Ranidae Palearctic: Rana temporaria is a common terrestrial frog in Great Britain, Europe and northwestern Asia. In continental Europe they are referred to as "grass frog" or "brown frog". They are resistant to cold climates and live as far north as the Arctic circle in Scandinavia, farther north than any other amphibian in the region.
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 Order: Scaphiopus, Family: Pelobatidae The spadefoot toad is a relatively moist, smooth-skinned amphibian.
It has a horny, broad black "spade" on its webbed hind feet, which it uses for burrowing.
Approximately 11/2 to 3 inches long, the spadefoot has large, bulgy eyes with vertical pupils. It is usually olive to brown in color with a pair of yellow stripes that extend from the eyes down the middle of the back.
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 Order: Anura, Family: Bufonidae The American toad is located in the Midwestern to eastern region of North America. They range east of the Rocky Mountains to the Atlantic Coast, and from mid-Canada to Mexico.
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 Order: Caudata, Family: Ambystomatidae The tiger salamander is named for its striped pattern.
It is the world's largest land-dwelling salamander.
The tiger salamander ranges from 6 to 13 inches long and is stout with a broad head and rounded snout. It has small, rounded eyes, and its feet have tubercles.
It is brownish-olive in color with black and yellow spots or blotches. Its underside is usually yellow.
The male tig...
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 by Rex Dalton, San Diego A disturbing trend of population declines and birth deformities in amphibians has prompted a US federal agency to launch an ambitious research programme.
The national Amphibian Research and Monitoring Initiative (ARMI) has been set up by the US Department of the Interior with $5 million to study why frogs, salamanders and toads are in such trouble. An additional $2 million is being sought for ...
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