The bumpy snailfish, discovered 10,000 feet down off the coast of California, shows that not all denizens of the abyss are frightening.

Scientists published a study this month on the nurse shark, which was caught and photographed by sport fishermen last year.

The blue dragons, which pack a ferocious sting, have led to several beach closures. Experts say it’s a worrying sign of the warming of the Mediterranean.

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