This parasite is part of a group of organisms known as cnidarians, which also includes ... features from its jellyfish ancestors. For example, it has cells that look like stingers, though they ...

Jellyfish belong to a group called Cnidaria, which also includes sea anemones and corals ... dohrnii may bend the rules to rejuvenate itself, but it can't always cheat death. For example, jellyfish, ...

It divides all of life into groups known as taxa, where a single taxon represents a particular way of dividing up nature – for example, a population of whales or a species of fish. Under the most ...