Country Life Charm Page
Bat
Bats are nocturnal that is they hunt at night. Instead of relying on their sense of sight for night-time vision, bats make rapid high-pitched squeaks called "ultrasounds". These sounds are too high for most people to hear. The bat hears the echo and can tell where the object is. This is called "echolocation". Bats sleep upside down. By hanging upside down they are able to spread their wings ready for take-off. They also have a good clear view for both seeing and hearing before flight. Bat wings are made of two thin layers of skin stretched over the bat's arm and fingers. Bats have a thumb and four fingers, the bat's fingers are very long compared to its body. Their wings are thin, giving them what is called, in flight terms, "airfoil." The power bats have to push forward is called "propulsion. “Bats can live for over 20 years.
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