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News Link • Underwater Exploration and Living

Weird Shark Uses Lightsaber Spines To Deter Predators

• Business Insider

Velvet belly lantern sharks may not satisfy that demand, but perhaps they're even better: They come ready-made with glowing spines that look like lightsabers, research shows.

These deepwater sharks sport transparent spines, illuminated by a row of light-producing cells along their dorsal fins, according to a study published today (Feb. 21) in the journal Scientific Reports.

Researchers think the glowing cells help keep these small sharks from being eaten, warning would-be predators that these shark-burgers come with a side of transparent spine that would be tough to swallow. If true, this would the first fish to use light, or bioluminescence, to actively ward off predators, said study author Julien Claes, a researcher at the Catholic University of Louvain in Belgium.

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