A spider from Hawaii has a smiley face on its back
It is found only on the islands of Oahu, Molokai, Maui, and Hawaii. The happy face spider, such as this one guarding its eggs on a leaf in Maui, is known for the unique patterns that decorate its pale abdomen.
Scientists believe Theridion grallator may have developed its distinctive markings to discourage birds from eating it.
