Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The reindeer is the only mammal that can see UV light.
17
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The station master and operating officer at the Kishi Station, Japan, is a cat!
18