Kangaroos hop because they can't move their legs independently.
Sharks are the only animals that never get sick. They are even immune to every known disease including cancer.
Sea otters hold hands while sleeping so they don't drift away from each other.
Ants go to war similar to humans. They use even more advanced strategies such as sending the weaker ants out, to fight first.
Penguins cannot walk backwards. They are too top heavy and would just fall down.
Dolphins don't breathe subconsciously, which is why the only sleep with 50% of their brain active - To prevent drowning.
Cats do not have sweet taste receptors - They can only taste things that are salty or bitter.
Porcupines can float in water.
The smallest and shallowest ocean in the world is the Arctic Ocean.
The 'Liger' is a cross between a female tiger and a male lion. Male tigers and female lions produce 'Tigons'.
