A group of kittens is called a "kindle".
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Female kangaroos have three vaginas.
2
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Cats sleep for 70% of their lives.
8