Although they closely resemble a Jellyfish and are often mistaken for one when they are washed up on the beach, they are in fact more closely related to human beings than they are to Jellyfish.
Salps have a nervous system, brain, heart, intestines, digestive and a circulatory system.
Salps use a form of jet propulsion to move through their habitat using muscles within their semi transparent bodies.
Salps are between 1-10 cm and reproduce asexually initially and can produce long chains of identical Salps which can disconnect from each other to produce more Salps. These chains can be longer than the human body. They have a lifespan of a few days to a few months.
They are a really interesting creature that few people know about, being yet another wonderful earthling in the rich tapestry of our amazing planet.
Below are some links for more information on these wondrous creatures.