The new jellyfish species is the first ever found in the Burgess Shale, a 505-million-year-old fossil bed in the mountains of B.C. considered by UNESCO to be one of the most important in the world.

Researchers have mapped the distribution of a jellyfish subspecies and found that creatures which lack a distinctive "knob" ...

The jellyfish has a pressure-release mechanism that allows them to sting after death. “It’s not the animal deciding to sting you,” Friesen said. “Anything that brushes up will get stung.” ...

Gelatinous zooplankton, colloquially known as jellies, are an evolutionary hodge-podge of squishy, translucent creatures composed mostly of water. While this group does include “true jellyfish ...