A group of pugs is called a grumble.
10
Mosquitoes don't just bite you, they also pee on you.
11
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6