Cuttlefish: Cuttlefish breed once a year on average. The males use color change to signal their intent to mate. If the female accepts the male, they orient themselves face to face and grasp each other. The male then transfers a packet of sperm, called a spermatophore, into a pocket near the female’s mouth. Once transferred to the female, the spermatophores burst and the sperm moves up the oviduct to fertilize the eggs. The eggs are laid on the seabed, often attached to rocks or coral. They hatch in about one-two months. After mating, male and female both die and their cuttlebones often wash up on beaches.