<< Previous Puzzle Monday, April 11, 2011 Newer Puzzle >>

Flying Mammals


Bats are not birds. They are mammals, the only mammals that can actually fly, not just glide. They are not really blind, but have very poor vision. Instead they emit sounds that echo against objects. They then pick up that echo to work out how to fly around. Humans cannot hear these ultrasonic sounds.
See Also: http://en.wikipedia.org/wiki/Bat

link to this puzzle

No comments:

Post a Comment