Some animals just look weird. Take the mandrill, whose outrageous face is colored to mimic its genitals, or the star-nosed mole whose nose sprouts 22 fleshy tentacles. Others behave strangely--a mallee fowl builds huge mounds of rotting vegetation in which to incubate its eggs. Some are plain ingenious, such as the fog-basking beetle, which stands on its head to drink from fog on the breeze (the fog condenses on its body and then trickles down...