What It’s Like to See a Lion’s Mane Jellyfish in Person

Collins said he will never forget the moment when he was diving in British Columbia and looked over his buddy’s shoulder only to see a large lion’s mane jellyfish in person.
“That was the first moment I thought ‘I wonder if a jellyfish could eat a person,’” he said. “I’d say that few jellyfish could evoke that thought. But, I want to emphasize that there is no evidence that a jellyfish could eat a person.”
Many jellyfish do eat other jellyfish, though. In fact, most jellyfish eat plankton, and some larger jellyfish may eat crustaceans and fish.
Even though there’s no evidence that a lion’s mane jellyfish will eat you (phew), Collins warned their stings can be pretty painful. Because of their size, they have the capacity to deliver a lot of venom, which can have some harmful effects. So even though lion’s mane jellyfish will not eat you, there’s still good reason to be cautious if you run into one.