MBARI (Monterey Bay Aquarium Research Institute) researchers have discovered a new species of deep-sea crown jellyfish in the ocean’s midnight zone. Typically, deep-sea crown jellyfish can be found worldwide in deep water with its signature scarlet color and one tentacle much longer than the rest. Around 15-years ago, researchers found a large jelly that looked like Atolla but lacked the telltale trailing tentacle, leading to the discovery of this new species.
This new species of deep-sea crown jellyfish was named Atolla reynoldsi in honor of the first volunteer at the Monterey Bay Aquarium, MBARI’s education and conservation partner. What really stands out about crown jellyfish is their ability to make light through bioluminescence, and when they’re touched, their bells will light up. The only time you really have to worry about this type of jellyfish is if you see one entering the atmosphere.
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These discoveries remind us that we still know so little about the ocean, the largest living space on Earth. The ocean is changing rapidly and the same threats that face coastal waters—overfishing, plastic pollution, climate change, and habitat destruction—also extend to the depths below. We must document the diversity of life deep beneath the surface before it becomes lost forever,” said the researchers.