The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Tigers can see 6 times better at night than humans.
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The cat brain weighs about 30g.
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Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
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