Box jellyfish is one of the world’s deadliest animals in the ocean thanks to a venom containing toxins that strike at the heart, nervous system and even skin cells of anyone unlucky enough to touch ...

Beachcombers who walk the Texas coast this March may spot an unusual jellyfish among the usual marine life. The Mushroom Cap Jellyfish (Rhopilema verrilli), a rarely seen visitor, has been washing ...