Inside an Alaskan Ice Cave

TECH SPACE HUMAN EARTH HISTORY ANIMALS ADVENTURE VIDEO View Online Inside an Alaskan Ice Cave Go inside Mendenhall Glacier near Juneau, Alaska -- a-12-mile-long sheet of ice. READ MORE Vertical Farms to Sprout Up in Cities Vertical farms increase production of food, reduce waste and naturally scrub the air of smog. What's not to love? READ MORE WATCH VIDEO: How Fish Farms Feed Their Captive Catch Find out the good, bad and ugly behind fish farms. Black Cats, Dogs May Be Born Lucky Forget ridiculous superstitions about black cats -- dark-colored animals carry survival perks in their coloring. READ MORE WATCH VIDEO: Dogs Have Feelings, Too Dog owners have long said their pets are like four-legged humans. Now science backs it up. Your Dog Forgets About You While You're Away We like to imagine our pets are in agony while we're out of the house, but, clinically speaking, what's going on in our furry friends' short-term memory? 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