Frogs are amphibians, which derives from the Greek word meaning "life." Most frogs are born in countries such as tadpoles and frogs gradually changed although some frogs, known as the developer directly, was born as a full frog. This allows them to be born and live away from water, such as on top of the mountain.
Frog, © Donna J. Kitchen
© Donna J.Cook
Diet
A live frog mainly on insects and small animals such as earthworms, minnows, and spiders.
Population
Do you know?
World's smallest frog is smaller than a dime, and the biggest frog can grow to be more than a foot and weighs more than 7 pounds!
There are about 4,740 species of frogs worldwide. There are about 90 species of frogs in the United States. Unfortunately, about 120 species of amphibians, including frogs, toads and salamanders, have disappeared since 1980. Historically, one amphibian every 250 years will disappear.
Limit
Frogs can be found on all continents of the world, except Antarctica. However, the highest concentration of frogs found in tropical climates warmer.
Behavior
Do you know?
Frogs do not have to drink the way we do: they absorb water through their skin permeability!
Frogs are known as indicator species and could give scientists better understand how an active ecosystem. Because they are the predators and prey many animals are affected by them, frog provides insight into the health of the ecosystem.
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