#65 How can bats sleep hanging upside down?
I learned this today. Bats can sleep hanging upside down because they need to use muscles to open their claws but not to keep them closed. The main reason that bats sleep hanging upside down is because they are not very good at taking off from the ground. In order to fly, bats have to […]
#65 How can bats sleep hanging upside down? Read More »