Often confused with corals, sea sponges are just as well known for their wide range of colour, strange shapes and seeming lack of mobility. However, recent underwater videos taken deep from the Arctic Ocean show that sponges are actually a bit more capable of movement than widely believed.
A new report revealed that these all these unusual movements actually come at a horrific price.
What defines a sea sponge?
But in order to understand how sea sponge movement happens, one must first know how a sponge is actually structured. It is this structure that makes them radically different from coral.