9th December 2012
The helmet jelly (Periphylla periphylla) is one of the most common deep sea jellyfish in the world and is found in every ocean except for the Arctic. Living between 1000 and 7000 meters depth, it moves up to shallower waters at night because light is toxic to the species. To avoid predation, the helmet jelly can use bioluminescence as a means of distracting predators.
Photos © Kåre Telnes The helmet jelly (Periphylla periphylla) is one of the most common deep sea jellyfish in the world and is found in every ocean except for the Arctic. Living between 1000 and 7000 meters depth, it moves up to shallower waters at night because light is toxic to the species. To avoid predation, the helmet jelly can use bioluminescence as a means of distracting predators.
Photos © Kåre Telnes

The helmet jelly (Periphylla periphylla) is one of the most common deep sea jellyfish in the world and is found in every ocean except for the Arctic. Living between 1000 and 7000 meters depth, it moves up to shallower waters at night because light is toxic to the species. To avoid predation, the helmet jelly can use bioluminescence as a means of distracting predators.

Photos © Kåre Telnes

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I am Ashley, an incredibly introverted 21-year-old environmental enthusiast.
I'm studying to be a marine biologist, but I live near the Great Lakes rather than the ocean.
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