In 2009, a colony of toads left their pond in a hurry just days before an earthquake. This wasn\u2019t the first time animals showed strange behavior just before a seismic event. Throughout history, reptiles, fish and other amphibians have behaved in strange ways just before an earthquake.<\/p>\n

Haicheng, China was another place where, in 1975, snakes were fleeing their burrows just one month before a major earthquake. This was notable because it was the middle of winter at the time, when the snakes should have been hibernating.<\/p>\n

Tornadoes<\/h3>\n

Scientists studying birds \u2013 gold winged warblers, to be exact, from the University of California, Berkley, stumbled on real evidence of erratic behavior. Because the birds in the study were tracked, the scientists noticed that just before the tornado hit, the birds flew nearly 1,000 miles away from their breeding grounds.<\/p>\n

Researchers have now said that the birds were sensing acoustic waves below 20 hertz, a level so low that humans can\u2019t hear it. Known as infrasound, only birds and animals are known to be able to hear such low levels. While still just a coincidence in events, it\u2019s a strong one and also makes the case for animal behavior predicting tornadoes.<\/p>\n