Da Vinci's Living Relatives Found

TECH SPACE HUMAN EARTH HISTORY ANIMALS ADVENTURE VIDEO View Online Da Vinci's Living Relatives Found A forensic search identifies direct descendants of the Renaissance genius. Researchers hint there are some surprising names. READ MORE Bizarre Black Holes Are Mysteriously Aligned A highly sensitive radio telescope has seen something peculiar in the depths of our cosmos. READ MORE WATCH VIDEO: What Would Happen if You Fell Into a Black Hole? Check out the bizarro physics behind a human's leap into a black hole. Massive Crab Swarm at Ocean Floor Filmed Video taken more than 1,164 feet below the Pacific Ocean's surface captured a frenetic swarm of thousands of red crabs in very low-oxygen, acidic waters. READ MORE WATCH VIDEO: Do Crabs Feel Pain? Looks like science had it wrong for hundreds of years -- just ask a crab. Why Do Dogs and Cats Eat Grass? When we think of grazing animals, we usually think of cows, goats and horses. But cats and dogs will graze, too. Why? WATCH Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! At Discovery Communications, we value your privacy. If you would like to be removed from future communications like this, please click here. Privacy Policy Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © Copyright 2015 Discovery Communications, LLC