The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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
Sharks, like other fish, have their reproductive organs in their chests.
248
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18