The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
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Sloths take two weeks to digest their food.
243
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
The largest earthworm on record was found in South Africa and measured 22 feet.
151
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9