Scientists reconstructed 500 million years of evolutionary history to reveal which came first: colorful signals or the color ...

Color-changing light-emitting fibers woven into fabric enable flexible, pixel-level displays for smart textiles, opening new possibilities for wearable communication.

A pet camera lets you monitor your cat or dog 24/7—and some even let you give them treats! These are the best pet cameras we’ve tested, plus some of our favorite security cameras that work as ...