Cuttlefish Propel Themselves With Fins and WaterĬuttlefish have a fin that goes around their body, which looks like a skirt. Cuttlefish are sexually mature at 14 to 18 months of age and only live 1 to 2 years.ħ. The female stays with the eggs until they hatch, but both the male and female die shortly afterward. The female attaches groups of egg onto objects (e.g., rocks, seaweed) on the seafloor. Mating occurs with the male transferring a sperm mass to the female’s mantle, where it is released to fertilize the eggs. Males may put on an elaborate display to attract a female. Both the tentacles and arms have suckers.Ĭuttlefish mate and lay eggs in spring and summer. The cuttlefish has two long tentacles that are used to quickly grasp its prey, which it then manipulates using its arms.

Cuttlefish Have Eight Arms and Two Tentacles

The giant cuttlefish is the largest cuttlefish species and can grow to 50cm in length and more than 10kgs in weight.ĥ.

These animals vary in size from a few inches to several feet in length. There are over 100 species of cuttlefish. Cuttlefish are cephalopods, which means they are in the same class as octopus who are also great at camouflage.Ĥ. They can even successfully change color to match their surroundings in complete darkness. They can do this even though they are completely color blind. Also, the cuttlefish’s eyes are very large in proportion to its body and may increase image magnification upon the retina, while the distinct ‘W’-shaped pupil helps control the intensity of light entering the eye.”Ĭuttlefish are referred to as the “chameleons of the sea” due to their color-changing abilities. The cuttlefish moves its lenses by reshaping its entire eye. It can see well in low light and can also detect polarized light, enhancing its perception of contrast. Cuttlefish have truly impressive visionĬuttlefish can see what’s behind them. Two hearts are used to pump blood to the cuttlefish’s large gills, and the third heart is used to circulate oxygenated blood to the rest of the body.Ģ. Cuttlefish have not one, not two, but three hearts! We often found cuttlefish while diving in Bali, here are 10 fun facts about Cuttlefish that you might want to know.ġ.

Fun facts about octopus