It’s called the Pyrostremma Spinosum, and this rarely seen deep sea glow worm has a cylindrical body that’s made up of thousands of tiny creatures called zooids that feed on plankton. This species is so rare that it’s been nicknamed the ‘Unicorn of the Sea’ and can grow up to 30 metres long – two double-decker buses laid end-to-end. Continue reading for a video and more information.

The Daily Mail reports that “the zooids are each connected by tissue and move as one inside the pyrosome’s tube structure and each zooid is a few millimetres in size. Also called a sea squirt, the pyrosomes are classed as pelagic, which means they are free-swimming and live in open water rather than near land.


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