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Wood Frog  The wood frog is known for its wooden colors. You can often find it in backyards and around swamps. 
The wood frog's call sounds a bit like quacking. Click on the frog to listen.
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Green Frog The Green Frog is mostly aquatic, living in ponds, lakes, and streams.
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A nictitating membrane is an extra eyelid. It protects the frog’s eyes when it is underwater, but is semi-transparent so that the frog can still see.