The Scariest Sound on the Savanna? Your Voice.. ( www.nytimes.com )
Human voices evoke more fear among animals living in the South African savanna than do snarls from lions. Researchers set up speakers near 21 water holes, which played one of several sounds when triggered by animal movement. When they heard humans, giraffes, leopards, elephants and 16 other species were twice as likely to run as...
