Those free-swimming jellyfish in the sea don't start out in that familiar medusa form, but rather start as sessile and asexual polyps. Now, researchers reporting in the Cell Press journal Current ...

A newly observed feeding behavior suggests jellyfish may exploit short-lived seasonal events in surprising ways.

How does one genome create two completely different body plans in one animal? New research answers questions about the regulation of metamorphosis, an animal changing from one physical form to another ...

Most polychaete species spend their lives in burrows in the seabed. However, adult individuals of two species, Alitta ...

Moon jellyfish (Aurelia aurita) in Egypt's Red Sea. (Image by Alexander Vasenin, Wikipedia Commons, via Courthouse News) Moon jellyfish (Aurelia aurita) in Egypt's Red Sea. (Image by Alexander Vasenin ...

Scientists have developed a robot that uses resonance to propel itself through water in the same style as an Aurelia aurita jellyfish, which is the natural world’s most efficient swimmer. The research ...

Aquatic videographer Lucas Richter, 22, managed to capture the spellbinding clip while visiting Oxnard. It shows thousands of the creatures, who are only one to seven inches in size, as they ...

Those free-swimming jellyfish in the sea don't start out in that familiar medusa form, but rather start as sessile and asexual polyps. Now, researchers have discovered what triggers that ...