The ancestor of all domestic cats is the African Wild Cat which still exists today.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The Basenji dog is the only dog that is not able to bark.
4
Squirrels forget where they hide about half of their nuts.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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