WEB EXTRA (CBS) — IT’S HUGE!: A biologist and broadcaster, Lizzie Daly, and her cameraman, Dan Abbott, spotted a giant barrel jellyfish over the weekend off the coast of England.
Daly spent about an hour swimming with it. Barrel jellyfish start out small – about a millimeter in length and can grow up to 3 feet in length.
They can weigh approximately 55 pounds when grown.
Barrel jellyfish do sting but don’t quite pack a real punch.