Blooming Jellyfish
Video courtesy of the NOAA Office of Ocean Exploration and Research, Windows to the Deep 2018. Download larger version (mp4, 14.9 MB).

This big medusa jellfyish belongs to the genus Cyanea, which is a group of scyphozoan jellyfishes well-known for their tendency to "bloom" and occur in large numbers in surface waters. They can also be a major food item for leatherback turtles.

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