Female kangaroos have three vaginas.
2
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
When cats are happy, they may squeeze their eyes shut.
10
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Dogs have been man's pet for over 14,000 years.
224