Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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Lobsters have blue blood.
476
The elephant brain weighs about 6,000g.
274
The most expensive cow in the world was sold in 2009 for $1.2 million.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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