One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Giant Panda Bears give birth to a 4 ounce Baby Panda!
23
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The faster a kangaroo hops, the less energy it burns!
58
Cattle are the only mammals that pee backwards.
33
Woodpecker scalps, porpoise teeth and giraffe tails have all been used as money.
46
Bats sleep 18-20 hours per day.
5
Dogs have been man's pet for over 14,000 years.
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