Male koalas mark their territory by rubbing their chests on a tree. Male koalas have a dark scent gland in the middle of their chest.

When a female leopard is ready to mate she will give a scent and rub her body on the trees to leave her smell there. Male leopards either smell the females scent or hear her call to know that she is ready to mate.

The New York Stock Exchange started out as a coffee house.

AMAZING FACTS