Scientists have just returned from a voyage in the Atlantic Ocean where they've found samples of rare animals and ten possible new species.
They used the UK's deepest diving machine that goes 3,600 metres below the sea. It spent 300 hours down there!
This is called a Bathypelagic Ctenophore and it was found stuck to the sea floor because its tentacles are sticky.
This one is an acorn worm that was found 2,700 metres under the Atlantic Ocean.
These animals might help us learn more about the missing link in evolution between backboned and invertebrate animals.
They have no eyes or brain but there's a head end, tail end and indication of a backbone.
By the end of the expedition three different species were discovered with different pink and purple colours.