| |
| | bat - The Columbia Encyclopedia, Sixth Edition - HighBeam Research (Site not responding. Last check: ) |
 | | Some bats are solitary, living in caves, crevices, hollow trees, or attics; other species are communal, with thousands or even millions of bats roosting together in a cave or on branches in a section of forest. |
 | | Nearly all bats are nocturnal and many live in caves; although they see well, they rely primarily on their highly developed hearing, using echolocation (sonar) to avoid collisions and to capture insects in flight. |
 | | The bat order is divided on anatomical grounds into two major divisions, or suborders: the Megachiroptera, or fruit bats, found only in the Old World tropics, and the Microchiroptera, or insect-eating bats, with a worldwide distribution. |
| www.highbeam.com /doc/1E1:bat/bat.html?refid=ip_hf (1010 words) |
|