The weight of the dugong for a male is 420kg and for a female 420kg too. The dugong is a type of manatee. The dugong is a large, blunt-muzzled mammal with flippers and massive body. It is gray and brown on top and paler on the bottom of its body. It has a horizontal tail with flukes and has muscular lips.
Dugongs feed mainly at night.
The dugongs live in herds or in small single off springs. The females start breeding at age 9 and are born in underwater. The babies feed at the mother's pectoral teats. The dugongs live in warm, calm, shallow seas. They also live in sub-tropical and tropical coastal waters.