The most expensive cow in the world was sold in 2009 for $1.2 million.
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When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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