Creatures of Light

 (biofluorescent seahorse photo: David Gruber) 
NOVA’s Creatures of Light airs February 3, 2016 at 9pm on WSKG-TV. In the dark depths of the oceans, nearly 90% of all species shine from within. Whether it’s to scare off predators, fish for prey, or lure a mate, the language of light is everywhere in the ocean depths, and scientists are finally starting to decode it. NOVA and National Geographic take a dazzling dive to this hidden undersea world where most creatures flash, sparkle, shimmer, or simply glow. Join deep sea scientists who investigate these stunning displays and discover surprising ways to harness nature’s light—from tracking cancer cells to detecting pollution, lighting up cities, and even illuminating the inner workings of our brains.

Testing Ocean DNA, Americans Pass a Science Quiz, and Polar Bear Diets

Tune into Science Friday today on WSQX from 2-4pm and learn how in California, monitoring marine protected areas can get expensive. Current efforts—which include underwater surveys conducted by scuba diving volunteers—have already cost the state $16 million, and in some places, there’s no funding left. But testing DNA in water samples could provide an effective alternative to more costly methods. KQED’s science and environment reporter, Lauren Sommer, discusses this story and other science news from the week. Plus, when it comes to their diet, polar bears aren’t so finicky.