Reproduction and modes of courtship-mating takes place in ocean,then the female lays eggs buried in the sand or the beach,eggs hatch and go on a long hard journey into the ocean. They have a 4 chambered heart fins them swim well in water. Ecological ninche-live in the Pacific Ocean, and all of the others too.
Small squid is an important item.
It is a secondary carnivore. Ecological ninche-They live in the south pacific ocean,all temperature and tropical oceans and adjoining seas. Females lay eggs at night. Thirty days to hatch. Stay away from very cold.