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Jellyfish are without brains, central nervous system, circulatory system, digestive system or eyes (though some do have light sensitive cells) and have been around for 500 million years. Sea Life, Sea Creatures, Nature, Blue, Josef Gelernt, Rise Jellyfish, Beauty, Jelly Fish, Animal
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Russian biologist Alexander Semenov graduated in 2007 from Moscow State University’s zoology department where he studied invertebrate animals. Specifically: squid brains. Now he works as the chief of his diving team at the White Sea Biological Station, camera always in-hand, where he’s captured some of these extraordinary photographs of jellyfish and other wildlife.