Jellyfish have populated the seas for over 500 million years, and have no brains, hearts or blood. They come in many amazing forms – we picked some of our favourite photos from robertharding.com
Mass of Crystal Jellyfish or Moon Jellyfish, Kiel Fjord, Germany
Scuba diver watches Moon Jellyfish, Aurelia aurita, Egypt, Sha´ab Shouna, Red Sea
Blue Button, Cayman Islands, Caribbean
Blue Bottle Jellyfish
A small group of jellyfish floating in water
Lion’s mane jellyfish, Alaska Pacific Ocean
A jellyfish floating in the water