Bats sleep 18-20 hours per day.
5
Condoms were originally made of animal intestines or linen.
347
The Basenji dog is the only dog that is not able to bark.
4
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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