Leo Da Vinci used to buy caged animals
Heavily hunted animals live in Chernobyl, because it is safer where there are no humans.
The Sea Anemone looks like a flower, but it's actually a carnivorous animal that eats small fish and shrimp.
In China, it is mandatory that cosmetic products are tested on animals while in Europe it's prohibited.
The original word for "bear" has been lost. Medieval people thought that saying the ferocious animal's name would summon it, so they used a euphemism that meant "the brown one" ("bear").
Alex, an African grey parrot, was the first and only non-human animal to ask an existential question: he asked what color he was.
Spotted hyenas sometimes scavenge, but, contrary to popular belief, they kill 95% of their food.
The deepest living animal ever found is a "devil worm" living 2.2. miles (3.6 kilometers) below.
People pay thousands of dollars to hunt Zebras and other African wildlife on large ranches in Texas.
Female sharks can store sperm for up to a year before using it to fertilise their eggs.
A species of hermaphroditic worm has a strange way to deal with loneliness: It injects sperm into its head to reproduce.
Naked mole-rats have a high resistance to cancer tumours because they produce an extremely high-molecular-mass hyaluronan and have ribosomes that produce extremely error-free proteins.
Some baby turtles talk to each other while they are still in their eggs so that they all hatch together.
Opossums have fifty razor sharp teeth, the highest number of teeth found in any land mammal.
One of the oldest species of animal still with us are the horseshoe crabs who appeared 445 million years ago. They've survived for 75% of the entire span of animal life on the planet.