BATON ROUGE, La., Jan. 11 (UPI) -- A tiny frog discovered in New Guinea -- so small it can sit in the center of a U.S. dime -- is the world's tiniest vertebrate, U.S. researchers say.
Louisiana State University researcher Chris Austin recently discovered two new species of frogs in New Guinea, one of which, Paedophryne amanuensis, is now the world's tiniest known vertebrate at 7.7 millimeters, less than one-third of an inch long.