|  |  | Happy Face Spider - Photo of the Day photography.nationalgeographic.com — Found only on the islands of Oahu, Molokai, Maui, and Hawaii, the happy face spider 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. Hawaiian name is nananana makaki'i (face-patterned spider). Click photo to enlargeMore... (General Sciences) Comments Email Added 2007-12-04 13:30:09 weiwuwei