They are just 46 mm (less than two inches) long, and live in burrows underground in the dry scrubland of South Africa and Zimbabwe. They are called rain frogs because they only come out after a shower of rain which is usually a rare event in their habitat.
The Namaqua rain frog has rather surprising weapon in its limited arsenal. When threatened, it puffs itself up and lets out a series of high-pitched squeaks!
The red-eyed tree frog is another tiny package of surprises. It lives in SOUTH America and has, as its name suggest, large brilliant red peepers, bright orange feet and blue and yellow sides.
It can inflate the area below its mouth and use it to amplify its mating call. The skin stretches so much, the frog becomes transparent. Then, this frog that can fit into a teacup, lets out a booming croak!
Male red-eyed treefrogs inflate their vocal sacs and rise on all fours in an attempt to attract females and deter other males from entering their territory. During this process, at least two males face each other and quiver, their bodies violently shaking. This quivering ritual establishes territory and demonstrates strength and intimidation.
Picture Credit : Google