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Sea anemones are closely related to coral and jellyfish. They eat small sea creatures and small fish that drift past them into their tentacles. The tentacles have poison in them, and the anemone stings them to kill them before it eats them.
Sea anemones spend most of their lives stuck to the same rock or other surface, but can unstick themselves and swim to a new rock if conditions aren't good for them, such as if their rock dries out for too long or something is trying to eat or damage the anemone.
Sea anemones can reproduce in the usual way by releasing eggs and sperm, but they can also reproduce by budding off new anemones or by splitting themselves in half to form a new anemone.
Sea anemones spend most of their lives stuck to the same rock or other surface, but can unstick themselves and swim to a new rock if conditions aren't good for them, such as if their rock dries out for too long or something is trying to eat or damage the anemone.
Sea anemones can reproduce in the usual way by releasing eggs and sperm, but they can also reproduce by budding off new anemones or by splitting themselves in half to form a new anemone.
Coral are tiny animals that grow together to form huge colonies. Sometimes these colonies are so big we call them reefs. Coral do not move around, they live and die fixed in one place, which is more like a plant than an animal. Coral eat small fish and sea creatures by trapping them as they pass with their stinging tentacles.
Hydra is a small freshwater animal that looks like a little tube with a soft body and several thin tentacles. It catches small prey that pass using its tentacles.
Jellyfish are found in every part of the sea, from the warm water at the surface to the cold, dark depths of the ocean. Jellyfish eat tiny sea creatures that drift into their tentacles.
Jellyfish come in almost every colour of the rainbow and range in size from smaller than your fingernail to having tentacles that are many metres long.
Some jellyfish are poisonous and their sting can kill a person. It is best to avoid touching a jellyfish if you don't know what sort it is.
Jellyfish come in almost every colour of the rainbow and range in size from smaller than your fingernail to having tentacles that are many metres long.
Some jellyfish are poisonous and their sting can kill a person. It is best to avoid touching a jellyfish if you don't know what sort it is.
Sis forSea Sponge
Some species of sponge have soft skeletons and people used to catch them to use them for cleaning and packaging, but there are now almost none left. Today, sponges found around the house are made by people, and are not animals caught in the sea.