Free Domain Names @!
CO.CC:Free Domain
Blog Catalog Blog Directory
"Do Follow" Blog Directory

Feb 14, 2008

Bats first flew then developed the SONAR

Bats learned to fly before they developed their internal "sonar" to navigate and catch insects, the most primitive bat fossil ever found shows.

"This new bat [fossil] is clearly a flying animal, but it lacks the features in the skull that we'd expect to see in an echolocating bat," said Nancy Simmons, chair of Vertebrate Zoology at the American Museum of Natural History in New York and co-author of a new study on the fossil.

Echolocation is the radar-like ability of some animals to emit high-pitched sounds, then detect obstacles or prey by listening to the sounds bounce back.