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LED-lit fishing nets save sea turtles from getting caught

Sometimes, it's the simplest tech that makes the biggest difference. University of Exeter researchers have crafted fishing nets with evenly distributed green LED lights (one every 33 feet) that warn sea turtles away without spooking fish. While scientists have yet to nail the exact reason the lights steer the turtles clear, one researcher tells Tech Insider that it's likely just a matter of visibility -- the turtles stand a better chance of seeing the net in time to avoid it. It's not only quite effective in early tests (it reduced green turtle deaths by 64 percent), but relatively cheap at $100 to cover a giant 1,640ft net with 50 lights.

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