A glow-in-the-dark shark scares off predators with "lightsaber-like" spines on its back, a study suggests.
The research was carried out on the velvet belly lanternshark, a small species found in the deep waters of the Atlantic Ocean and Mediterranean Sea.
The scientists believe that while the light-up spines can be seen by larger, potentially dangerous fish, they are harder for the shark's prey to spot.
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Glowing shark scares off predatorsvelvet belly lanternshark lightsaber predators glow-in-the-dark scares
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