Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Whales and dolphins can't taste anything other than salt.
11
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45