In the wild, lemurs live only on Madagascar and the nearby Comoro Islands.
There are over 30 species ranging in size from the one ounce pygmy mouse lemur to the 15lb Indri lemur.
They have opposable thumbs and fingers and for grooming mainly use the second toe of their hind legs.
Lemurs form a matriarchal society with a dominant female in charge of each group.
To resolve disputes, lemurs engage in 'stink fights' in which they rub their tails on sweat glands on their forearms and under their arms, then wave their tails around to waft the smell about, causing the enemy to run away.
Lemurs take their name from the Latin 'Lemures' which means ghosts, because of their mysterious and largely nocturnal lifestyles.