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| | Friends of Saguaro National Park - About Saguaro National Park: Bats (Site not responding. Last check: ) |
 | | It is such a sensitive system that the bat is able to determine the size, speed, and direction of travel of a moving insect and, in the same fraction of a second, plot a course of interception. |
 | | Bats are not blind -- they have good eyesight -- and do not get tangled in hair (they are just flying close to get the gnats and mosquitoes zeroing in on you). |
 | | Some bats emit high-pitched (ultrasound) chirps from their mouth and/or nostrils, then listen for the echo to form a "picture" of their environment and to determine distance, direction and speed of movement, and texture of the objects (e.g., prey) around them. |
| www.friendsofsaguaro.org /bats.html (1328 words) |
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