If you go to the beach and dip a bucket in the sea, you might at first ... It's amazing to think that microscopic animals are the diet of such huge creatures. Some zooplankton, like copepods ...

One of the strangest groups of creatures of all is the sea squirts. Their comical title belies the fact that although they are still invertebrates, they actually belong in the same phylum as we do ...

Working at 2,500 metres above today’s sea level, a group of scientists from ... the planet’s only life was simple and microscopic. But around 635 million years ago, that began to change.

From the unexpected kinds of pollution in the Arctic Circle to the creatures and ecosystems ... Thousands of marine species from microscopic zooplankton to the largest cetaceans rely on sound ...