Scientists have announced that the oldest living creature on our planet is a jellyfish-like organism called a ctenophore. It evolved from the same primordial animals that humans did. This fascinating ...

It was a strange jellyfish-like creature called a ctenophore - popular in modern aquariums. All species evolved from the single common ancestor that lived up to 700 million years ago including ...

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 in ...

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