Norwegian scientists say the sea walnut has the rare ability to develop in reverse — but not everyone’s convinced.

A team of evolutionary biologists have used chromosome analysis to determine what animal has roamed the Earth the longest: ...

Experts have confirmed that it is a jellyfish-like organism called a ctenophore - also known as a comb jelly. They first emerged up to 700 million years ago - a long time before dinosaurs ...

One of the most dramatic and damaging invasions of the past quarter century involves a single species of comb jellyfish, a jellyfish-like marine animal also known as a ctenophore ("ten-oh-for").

We all lean forward, jostling each other to see. There. For a moment, a ghostly image of the ctenophore appears in the dish. An image made of bluish light that swirls and gradually dissipates ...

Although the bloody jelly resembles a jellyfish, it is, in fact, a ctenophore, or comb jelly. These organisms differ from jellyfish because they lack nematocysts, the characteristic stinging cells ...

This deep-sea ctenophore is about the size of a tennis ball and thrives two miles below the sea surface. Its scientific genus is Bathocyroe, which translates to “master of the deep.” ...

View full bio Roger Croll Comparative neurobiology, ctenophore, nervous system, immunohistochemistry, anatomy and morphometrics, behaviour, in vitro physiological preparations and advanced imaging ...

Population genetics of the invasive ctenophore Mnemiopsis leidyi in Europe reveal source–sink dynamics and secondary dispersal to the Mediterranean Sea. Marine Ecology Progress Series, Vol. 485, Issue ...