The jaw of the loosejaw dragonfish (Photostomias goodyeari) is a marvel of the animal kingdom. It has no floor and…

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Mesobot using red light in a test tank

The newly developed deep sea robot, Mesobot, dove down to 300m for the first time last week during a successful test and evaluation cruise off Monterey Bay. Mesobot is designed to let scientists observe the twilight zone by autonomously tracking individual animals for hours or even days without disturbing the environment or disrupting their behavior.

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Sloan viper fish

Down in the dark and shadowy mesopelagic layer of the ocean, countless species—bristlemouths, lanternfishes, jellies, and others—have a natural ability…

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