Michael Pitts / Jellyfish (Cephea cephea) Micronesia, Pacific Ocean

Doug Perrine / Crown jellyfish (Cephea cephea) with a juvenile drift fish sheltering within its venomous tentacles, hiding its head inside the jelly's mouth. In surface waters of deep open ocean at night, Kona, Hawa...

Suzi Eszterhas / Crown jelly (Cephea cephea) captive, Monterey Bay Aquarium, California, USA, January.

Norbert Wu / Jellyfish (Cephea cephea) common in the Indo-Pacific, shows juvenile Filefish (Monacanthidae) and Batfish (Platax sp) hiding within, Mergui Archipelago, Myanmar

Chris Newbert / Jellyfish (Cephea cephea), Kona, Hawaii

Norbert Wu / Jellyfish (Cephea cephea) underwater portrait, Fiji

David Fleetham / Jellyfish (Cephea cephea), Palau, Micronesia.

Shane Gross / Crown jellyfish (Cephea cephea) floating near surface, Moorea, French Polynesia, Pacific Ocean.

Shane Gross / Crown jellyfish (Cephea cephea) floating near surface, Moorea, French Polynesia, Pacific Ocean.

David Fleetham / Crown jellyfish (Cephea cephea) Palau, Micronesia.