For the past four decades, paleontologists thought ancient “blob” fossils found in Illinois were jellyfish, according to a Colorado museum. But it turns out, “we’ve been looking at them upside down,” ...

In a remarkable discovery that rewinds the tape of time, rare 505-million-year-old fossil remains have led to the discovery of a new species of ancient jellyfish. The researchers at the Royal Ontario ...

A newfound fossil site in China is teeming with bizarre, primitive species that have never before been found any place on Earth. The bounty of creatures includes a spiny, segmented animal known as a ...

At first glance, humans seem to have very little in common with Cassiopea, a primitive jellyfish. Cassiopea is brainless, spineless, and spends essentially its entire life sitting upside down on the ...

Jellyfish undergo an amazing metamorphosis, from tiny polyps growing on the seafloor to swimming medusae with stinging tentacles. This shape-shifting has served them well, shepherding jellyfish ...

David Gold, an assistant professor in the Department of Earth and Planetary Sciences, talks with Chancellor Gary S. May for an episode of Face to Face With Chancellor May. (Karin Higgins/UC Davis) A ...

For years, science fiction has promised a future filled with robots that can swim, crawl and fly like animals. In one research lab at Caltech, what once felt like distant imagination is becoming ...

For the past 44 years, paleontologists thought “blob” fossils found in Illinois were jellyfish, according to a Colorado museum. Turns out, they are sea anemones. Illustration by Julius Csotonyi, ...

The first in-depth look at the genome of a jellyfish -- the moon jelly Aurelia aurita -- shows that early jellyfish recycled existing genes to gain the ability to morph from polyp to medusa. Jellyfish ...