Why do bats sleep upside down

why do bats sleep upside down
nikkiflp
Asked Feb 22, 2010
http://www.whyzz.com/why-do-bats-sleep-upside-down
Oni_Kami
Answered Feb 23, 2010
it is easier for them to cover thier face hanging upside down so the light doesnt' shine in thier eyes.
niteowl24
Answered Feb 23, 2010
They're blind, light doesn't affect them. They see using sonar. They screech at the area around them and when the sound echos back to them, they can tell what's in the area by the change in the sound.

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