They eat detritus and plankton, which they filter from the water. Despite being known as blue mussels, because of the colour of their shells, they are sometimes purple or brown. They have been a ...
Sea cucumbers (class Holothuroidea), however, can survive in both shallow waters and the deep ocean. They use their tube feet to eat tiny bits of algae and decaying organisms on the sea floor or ...
They’re helping researchers understand the impact that frequently eating takeaways has on health – and they’re going to eat them twice a day for a fortnight. We see the experiment play out ...