The reindeer is the only mammal that can see UV light.
17
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Cats sleep for 70% of their lives.
8
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12