Bats wake up after their winter hibernation. Some appeared already in their summer quarters, those living in the mountains or less resistant to cold, will come to their roosts soon.

The question in this competition is about the sleeping time of the bats. Explain, how is it possible, that bats do not fall down during long weeks of hanging at the cave ceiling.

Project gadgets - T-shirts, badges and fudges will be randomly awarded among the correct answers. Have fun!