Bats sleep 18-20 hours per day.
5
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
The elephant brain weighs about 6,000g.
274
Jumping fleas can accelerate 50 times faster than the space shuttle.
218