The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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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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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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