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Endangered, Vulnerable, and Threatened Species
Bats

When does a greater horseshoe bat sleep?

Answer

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August 10, 2010 3:49PM

Never. They die when they sleep.

- Oh my gosh! Are you serious?! That is TOTAL rubbish!!

Most nocturnal bats sleep during the day, but in general, when a bat is in its roost (a cave, tree hollow, crevice or roof (etc) it will 'sleep' to conserve energy.

Bats are very interesting mammals in that when they sleep they can lower their body temperature and slow their metabolism right down (this state is called "torpor") when sleeping. Other mammals also do this to save energy.

- a bat biologist