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Facts about Frogs , Amphibians, Reptiles, Fish & other Animals |
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Leopard Frog |
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Leopard frogs, which are also called meadow frogs and grass frogs, are a collection of so-called true frog within the genus Rana. Once abundant in North America and Canada, their population has declined in recent years because of pollution and deforestation. Leopard frogs are often used as environmental indicator species because of their heightened sensitivity to chemical pollutants found in the air and water, and they are commonly used as dissection specimens in biology classrooms. Leopard frogs are recognized by their green or brown
coloration with distinct light-edged dark spots across the back and
white underside. They also have a characteristic line of raised
glandular skin, called the dorsolateral ridge, extending from each eye
to the groin. Some species also have a light marking on the center of
their tympanic membrane. Males have two vocal sacs, located on both
sides of the body, used to attract mates and establish territory. The
adult ranges in size from about (2–5 in) in length, depending on the
species, with females generally larger than males. |
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FactFrog.com |
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