Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
There is a tiger named Kenny who is the only known tiger to have downs syndrome.
10
Dogs and cats consume over $11 billion worth of pet food a year!
8
Flies are deaf.
379
The male praying mantis cannot copulate while its head is attached to its body. The female initiates sex by ripping the males head off.
85
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19