Because of their unique physical abilities, bats can safely roost in places where predators cannot get them. To sleep, bats hang themselves upside down in a cave or hollow tree, with their wings draped around their bodies like cloaks. They hang upside down to hibernate and even upon death.

How can bats hang upside down without blood going to their head?

Hanging upside down has a few benefits for bats. Bats have special tendons in their feet that let them hang while being totally relaxed, so they aren't using much energy. ... Most bats are so small they probably don't get dizzy like we might because gravity doesn't make as much blood rush to their head.

Do bats hang upside down when dead?

Before taking off in flight, the bat relaxes the tendon, which releases their grip. This locking mechanism works so flawlessly that if a bat dies while perched, its body will continue to hang upside down until something shakes it loose. Bats can also hang upside down without getting dizzy.