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Cuttlefish

Sepiida (Decapodiformes)

Cuttlefish are marine animals belonging to the cephalopod family, which also includes squid and octopuses. They have a unique internal shell called a cuttlebone and are known for their ability to rapidly change the color and pattern of their skin for communication and camouflage.

They live in warm coastal waters of the Mediterranean and Eastern Atlantic, and are carnivorous, mainly eating crustaceans, fish, and other cephalopods. Cuttlefish are known for their complex communication and camouflage abilities and are solitary creatures, except during mating season. There are over 120 species of cuttlefish, with some being endangered due to overfishing and habitat loss.

Giant Cuttlefish Graphic
Common Cuttlefish Featured
By Jarek Tuszyński / CC-BY-SA-3.0 & GDFL, CC BY-SA 3.0, https://commons.wikimedia.org/
Flamboyant Cuttlefish
By Silke Baron from Vienna, Austria - Flamboyant Cuttlefish, CC BY 2.0, https://commons.wikimedia.org/
Giant Cuttlefish Clickable
@KillerWren via Twenty20
Reaper (Red) Cuttlefish Clickable
By John Turnbull - https://www.flickr.com/photos/johnwturnbull/29761027686/, CC BY-SA 2.0, https://commons.wikimedia.org

Cuttlefish are marine animals that belong to the cephalopod family, which also includes squid and octopuses. They have a unique internal shell called a cuttlebone, which helps them control their buoyancy. 

Cuttlefish are known for their ability to rapidly change the color and pattern of their skin for communication and camouflage. They can grow up to 20 inches (50 cm) in length and weigh up to 4.4 pounds (2 kg).

Cuttlefish are found in warm coastal waters of the Mediterranean and Eastern Atlantic. They are also found in the waters of the Red Sea and the Indian Ocean.

Cuttlefish are carnivorous and mainly eat crustaceans, fish, and other cephalopods.

Cuttlefish are known for their complex communication and camouflage abilities. They use their skin to communicate with other cuttlefish, as well as to blend in with their surroundings. They are also known to be solitary creatures, except during mating season.


There are over 120 species of cuttlefish, which belong to the family Sepiidae. The most common species include the Common cuttlefish (Sepia officinalis), the giant cuttlefish (Sepia apama) and the Metasepia pfefferi, also known as the flamboyant cuttlefish.

Are they endangered? Some species of cuttlefish are considered to be endangered due to overfishing and habitat loss. However, not all species of cuttlefish are considered endangered. The European cuttlefish and the giant cuttlefish are considered to be near threatened, and the dwarf cuttlefish is considered to be a species of least concern.