The most expensive cow in the world was sold in 2009 for $1.2 million.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
A group of unicorns is called a blessing.
304
Cats recognise the voice of their owner, but never evolved to care.
22
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8