Cnidaria – Hydrozoa


The bluebottle is not a single animal but a colony of animals that depend on each other for survival. Some animals are specialised for feeding, digestion and reproduction, and one polyp (or animal) produces the gas-filled float. Drifting on the ocean currents, feeding on small fish and other animals, the main tentacle can range up to 10 m in length.

Did you know?

Warning – even a bluebottle washed up on the beach can inflict a nasty sting!