Comb jellies, technically known as ctenophores, are one of the weirdest creatures on Earth. They appeared in the seas over half a billion years ago and have maintained to the present day the comb-like ...

Add Yahoo as a preferred source to see more of our stories on Google. Mnemiopsis leidyi, the warty comb jelly or sea walnut, is a species of tentaculate ctenophore (comb jelly), originally native to ...

“While maintaining a population of M. leidyi in a seawater tank, we noticed an atypically large individual with two aboral ends [referring to the area farthest from the mouth] and two apical organs ...

A little more than a year ago, while biologist Kei Jokura was in Woods Hole, Mass., he routinely walked down to the water, scanning for comb jellies. "They look like a jellyfish," he says, "but ...