When threatened, a few African frogs can morph toes into claws
Monday, June 23, 2008 - 12:14
in Biology & Nature
At least 11 species kick at predators with sharp, protruding bones as a defense mechanism Biologists at Harvard University have determined that some African frogs carry concealed weapons: When threatened, these species puncture their own skin with sharp bones in their toes, using the bones as claws capable of wounding predators.