The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
When cats are happy, they may squeeze their eyes shut.
10
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Sharks, like other fish, have their reproductive organs in their chests.
248
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Cats sleep for 70% of their lives.
8
When a male honey bee climaxes during sex, his testicles explode and then he dies.
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