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The Probert Encyclopaedia of Nature

FROG

The frog is an Anura with four legs, four toes on the fore feet and five on the hind. The feet are more-or-less webbed. The body is naked and has no ribs and no tail. The tongue is fleshy and attached in front to the jaw but is free behind so that it can be protruded.
Research Frog

 
 
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