The ctenophore, Mnemiopsis leidyi, can make its own coelenterazine to create this beautiful bioluminescent display. Credit: Manabu Bessho-Uehara In the pitch-black environment of the deep sea, light ...

Marine biologist Joan J. Soto-Angel realized a piece of wisdom when one day he noticed that an adult comb jelly had suddenly disappeared from his laboratory tank, clearly perplexed by its sudden ...

In the world of phylogenetics, there’s team sponge and team comb jelly. Which creature roots the animal tree of life — the simple sponge or the more complex comb jelly — has stirred fierce debate ...

Scientists have discovered which animal was the first to branch off from our collective common ancestor. For years, debate had raged over whether the first to diverge was the sea sponge or the comb ...