Broadclub and Flamboyant cuttlefish eggs. Male cuttlefish mate with the females by grabbing them with their tentacles, turning the female so that the two animals are face-to-face, then using a specialized tentacle to insert sperm sacs into an opening near the female’s mouth. The male then guards the female until she lays the eggs a few hours later. For Flamboyant cuttlefish, freshly laid eggs are white, but slowly turn translucent with time, making the developing cuttlefish clearly visible after only five days. After 3 to 4 weeks with an average of 25 days, flambo eggs hatch. (Wikipedia)