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The Secret Life of Jellyfish

The Secret Life of Jellyfish

© Alexander Semenov

As head of the scientific diver’s team at the White Sea Biological Station in northwestern Russia, marine biologist Alexander Semenov has been studying—and photographing—the life cycle of Cyanea capillata, aka the lion’s mane jellyfish. The creatures only live for about six months, usually from May to September, but grow to a diameter of two to three meters with tentacles as long as 36 meters. “I’m trying to study marine life through the lenses, and from year-to-year I get more and more knowledge about the underwater world of cold waters of the north,” Semenov says.


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