Size Matters: Narwhals With Longer Tusks Have Bigger Testicles

Narwhals grow long tusks, if they have the balls to do it. The spear at the end of the male sea unicorn has been variously thought to be a sensory organ, a device for battling other males, or an elaborate reproductive signal. New evidence shows they're the whale version of peacock feathers. » 9/22/14 6:42pm Yesterday 6:42pm

Nat Geo Wild's Radical Approach to Science TV: Being Truthful

Science television in America has had a rough few years. We've been told that mermaids exist (they don't) and that Megalodon lives (it doesn't). Investigative journalists have discovered that some wildlife shows mistreat animals. But Nat Geo Wild has largely bucked the trend of misleading or lying outright to viewers. » 9/18/14 5:15pm Thursday 5:15pm

The Science of Dog Training: Is It Okay To Use A Shock Collar?

The use of electronic shock collars as aids in dog training is, to put it mildly, controversial. Some are outraged that owners would subject their canine companions to electric shocks; others insist they're the only way to get their dogs to behave. What does science say? Let us break it down for you. » 9/10/14 11:03am 9/10/14 11:03am

Ancient Egyptian Art Contains The Records of Past Extinctions

Six thousand years ago, the Egyptian wilderness was a very different place. Lions ruled, zebras gathered in large herds, giraffes foraged from tall trees. We know that, in part, thanks to drawings on the walls of ancient Egyptian tombs. Can ancient art help us better understand modern Egyptian wildlife? » 9/09/14 3:18pm 9/09/14 3:18pm

This Map Shows How Hunting Wiped Out Whales In Less Than A Century

A century of commercial whale hunting has devastated whale populations around the globe, some to just 10% of their historic size. This animated map shows how different whale populations were systematically slaughtered between 1900 and 2011. But there's a bright spot: California's blue whales are doing great! » 9/05/14 3:32pm 9/05/14 3:32pm

5 X-Rays That Reveal The Craziest Things Pets Have Ever Swallowed

Veterinarians see some crazy things come through their office doors. But perhaps the most entertaining - at least in cases where the animals come out just fine - show up on x-rays. Owners bring their pets in because they're acting weird or not eating, and then you find out that Fluffy swallowed an alien. Whoops. » 9/04/14 12:50pm 9/04/14 12:50pm