These jellyfish may look graceful, but don’t be fooled they’re some of the deadliest creatures in the ocean! From venomous stings to heart-stopping toxins, here are the top 5 most dangerous ...

This story appears in the October 2018 issue of National Geographic magazine. Moon jellies, which are found in shallow bays around the world, look like small, not entirely friendly ghosts.

One of Majorca’s most popular and most beautiful beaches has been invaded by thousands of jellyfish. Locals and residents were shocked to find that Cala Millor’s Blue Flag beach was full of ...