Wild predators must regularly hunt or forage to survive. While many animals graze or scavenge, large constrictor snakes rely on overpowering and swallowing prey whole. But even experienced predators ...

Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.

If you’ve been to a wedding or a downtown coffee shop in the last 10 years, you’ve probably seen those little lightboxes that are so popular these days. They consist of letters placed ...

NEWSCASTER: Chicago is now under full national security. NEWSCASTER: A no-fly zone is in effect. JOHN HOCKENBERRY, PRI's The Takeaway: [voice-over] It was a big weekend in Chicago. Last spring, the ...