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Sea Creatures

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Sea creatures are animals that live in the sea. A variety of these creatures are already described in this website under sea mammals, sea reptiles, salt water fish, saltwater crustaceans, saltwater molluscs and saltwater worms.

Although seahorses are fish and squid, cuttlefish and octopus are all molluscs we have described them all in this sea creature section because of their unusual characteristics.

Also under sea creatures we have included microscopic zooplankton, corals, sea quirts and the Dead Man’s Fingers as well as the primitive Sea Orange Sea Sponge. We’ve also included some well-known sea creatures such as the Common Starfish, the Common Sea Urchin and the Common Jelly Fish and also less known creatures such as the Common Brittlestar, the Gravel Sea Cucumber, the Phosphorescent Sea Pen, the Trembling Sea Mat and the Sea Toad.

We hope you enjoy reading about all these wonderful creatures and that you will be able to more fully appreciate the extent of our natural heritage surrounding our shores.

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Brittlestar (Common)

Brittlestar (Common)

The Common Brittlestar is a sea creature that has five long slender arms extending from the centre of its body. It has the name ‘Brittlestar’ because its arms and bo

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Coral (Devonshire Cup)

Coral (Devonshire Cup)

The Devonshire Cup Coral is a hard stony-looking sea creature that is cup-shaped. It can be found in the north-east and south-west coasts of England. Unlike the Weymouth

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Coral (Weymouth Carpet)

Coral (Weymouth Carpet)

The Weymouth Carpet Coral is a rare rock-looking sea creature that is mainly found in the south-west coastal waters of England. It has the name ‘Weymouth’ because in

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Cuttlefish (Common)

Cuttlefish (Common)

The Common Cuttlefish is not a fish like its name suggests, but a ‘cephalopod’ . A cephalopod is a fast-swimming mollusc that has suckered tentacles attached to its

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Dead Man's Fingers

Dead Man's Fingers

The Dead Man’s Fingers is a soft coral that likes to live in clusters of groups to form colonies. The colonies form thick, fleshy-looking masses which take the shape o

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Feather Star (Rosy)

Feather Star (Rosy)

The Rosy Feather Star is an attractive feathery-looking sea creature that can be found in most waters around England, although it is rarely seen on the south-east coast.

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Hydroid (Oaten Pipe)

Hydroid (Oaten Pipe)

The Oaten Pipe Hydroid is a sea creature that looks more like a plant than an animal. It has a long fleshy yellow stem with a pink round body on top. The body is surroun

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Jellyfish (Common)

Jellyfish (Common)

The Common Jellyfish is also known as the Moon Jellyfish or the Saucer Jellyfish. It mainly lives out in open waters, but it is regularly forced closer to shore by tides

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Octopus (Lesser)

Octopus (Lesser)

The Lesser Octopus is also known as the ‘curled octopus’ because it curls up its tentacles when it rests. It is a ‘cephalopod’ which is a fast swimming mollusc that has suck

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Sea Cucumber (Gravel)

Sea Cucumber (Gravel)

The Gravel Sea Cucumber is a cucumber-shaped sea creature that is mainly found in the south-west coastal waters of England where there are strong flowing tidal currents. It is often

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Sea Fan (Pink)

Sea Fan (Pink)

The Pink Sea Fan is a pink or white soft coral that looks more like a plant than an animal. It has a broad base and a column from which wart-like branches grow in a shap

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Sea Mat (Trembling)

Sea Mat (Trembling)

The Trembling Sea Mat is a yellowy brown sea creature that looks similar to a moss-like plant than an animal. The Trembling Sea Mat is very rare in England and can only

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Sea Pen (Phosphorescent)

Sea Pen (Phosphorescent)

The Phosphorescent Sea Pen is a deep reddish pink sea creature that has a long thick stem with feathery-looking branches. It has the name ‘Sea Pen’ because it looks

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Sea Squirt (Football)

Sea Squirt (Football)

The Football Sea Squirt is a milky white transparent-looking sea creature that can be found in England on the south coast of Devon. It has its name because it lives in a

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Sea Squirt (Lightbulb)

Sea Squirt (Lightbulb)

The Lightbulb Sea Squirt is a transparent-looking sea creature that is almost tube-like in appearance. It lives in a group called a colony and can be found around most o

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Seahorse (Short-snouted)

Seahorse (Short-snouted)

The Short-snouted Seahorse can be found in waters in the south, south-east and east coasts of England. It can also be found in the summer months in estuaries and bays th

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Seahorse (Spiny)

Seahorse (Spiny)

The Spiny Seahorse can be found along the south and south-west coast of England where it can be found in shallow areas of the sea. It can also be found in rock pools in

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Sponge (Sea Orange)

Sponge (Sea Orange)

The Sea Orange Sponge is a bright orange sponge-looking sea creature that is also known as the Sulphur Sponge. It can be found all around the coasts of England in shallo

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Squid (Common)

Squid (Common)

The Common Squid is also known as the European Common Squid and is a ‘cephalopod’. A cephalopod is a fast-swimming mollusc that has suckered tentacles attached to i

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Starfish (Common)

Starfish (Common)

The Common Starfish is a thick spiny-bodied sea creature that has five arms extending from the centre of its body. It can be found all around the English coast in off-sh

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Sunstar (Common)

Sunstar (Common)

The Common Sunstar is a thick spiny-bodied sea creature that has ten to twelve arms extending from the centre of its body. It is related to the Common Starfish and can

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Urchin (Common Sea)

Urchin (Common Sea)

The Common Sea Urchin is a round orange-pink sea creature that is also known as the Edible Sea Urchin. It is widespread around the English coast and is mainly found unde

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Zooplankton

Zooplankton

Zooplankton is basically a group of living animal organisms that float and drift freely with the currents of the water. Many of these organisms are microscopic which m

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