Its distinct squareness allows this cool jellyfish to ... Crystal jellyfish are actually bioluminescent, glowing green-blue when disturbed. White-spotted jellies (Phyllorhiza punctata)—known ...

Joe Richman saw a big black jellyfish swimming right beside him. In 30 years of diving and fishing off San Diego, I've seen a lot of cool things and this ranks up there as one of them, cbs8 quoted ...