When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The most expensive cow in the world was sold in 2009 for $1.2 million.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
When cats are happy, they may squeeze their eyes shut.
10
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Penguins have a gland above their eye that turns saltwater into freshwater.
12