Previously, the immortal jellyfish (Turritopsis dohrnii) was the only species thought to have the ability for reverse development, but now, scientists know that the comb jelly (Mnemiopsis leidyi ...

Where did their adult jellyfish go, and how did an infant jelly come to be? This is the unfathomable story of comb jellyfish ...

Comb jellies, soft-bodied marine creatures that swim by beating rows of cilia, may once have had a hard skeleton. Jef Akst was managing editor of The Scientist, where she started as an intern in 2009 ...

Some develop into tentacles, for example; others become reproductive organs. Comb jellies may be the most ancient living animal. They have a nervous system and—this shocked specialists—two ...

The fossil, an eight-armed swirl named Eoandromeda after the galaxy Andromeda, is believed by researchers to be the ancestor of modern comb jellies, which populate oceans worldwide and swim using rows ...

This brownish-orange comb jelly of the genus Beroe is likely one of the five undescribed species characterized by the team of researchers. Credit must be given to the creator.

Where did their adult jellyfish go, and how did an infant jelly come to be? This is the unfathomable story of comb jellyfish and how they can age in reverse. This is what their regenerative ...