Biologist Caitlin O’Connell-Rodwell believes that elephants are able to pick up incoming seismic vibrations from across a huge distances by placing their hypersensitive trunk on the ground. From CAN ANIMALS PREDICT DISASTER?, part of Thirteen/WNET New York's NATURE series , airing Sunday, May 13 at 8 p.m. (ET) on PBS (check local listings). For more information, visit http://www.pbs.org/nature