This African frog gets its name from the hair-like structure found on the sides of males. These hairs are used to increase the rate that the frog absorbs oxygen, since the males spend long periods of time guarding their eggs. Another impressive fact about these frogs is that they have retractable claws made of bone (as opposed to keratin). However, to get these claws out, the frog must break a bone nodule first. Ouch! --
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