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00:00Do you know why the bat always sleeps upside down?
00:03During its evolution, the bat chose to prefer flying to walking.
00:08Thus, its small legs have atrophied and are now too short and too weak to allow it to stand up,
00:14walk and run to take off.
00:17It is therefore for safety that the bat spends its days sleeping upside down.
00:22Hanging from the ceiling, it is sheltered from predators on the ground and only needs to fly to let itself fall.
00:30you