I tested what really happens when a fake foot steps on a sea urchin to see how dangerous the spines are and how they react ...

The entire body of a sea urchin is what researchers are now calling an “all-body brain,” with neurons that function as a ...

Consider the sea urchin. Specifically, the painted urchin: Lytechinus pictus, a prickly Ping-Pong ball from the eastern Pacific Ocean. The species is a smaller and shorter-spined cousin of the purple ...

With spikes as long as knitting needles, long-spined sea urchins may look like underwater villains, but their appetite for algae makes them the unsung heroes of Caribbean reefs. Courtesy of the ...

Biologists thought that marine heat waves lowered urchin reproduction only at lethal temperatures. A new study shows ...

Two pioneering studies by researchers from the School of Zoology and the Steinhardt Museum of Natural History at Tel Aviv ...