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If Humans Never Existed, the World Would Have More Mammals

There aren’t many large mammals around anymore in, most of the world. That’s mostly because one mammal species — Homo sapiens — has taken a heavy toll on its competition. Now, a team of researchers demonstrates what would have happened to the world’s megafauna if humans had never existed. » 8/23/15 7:27pm Sunday 7:27pm

This is How Sewer Rats Climb Into Your Toilet

City dwellers, check your toilet before you sit down. It sounds like an urban legend, but rats actually do manage to crawl up from the sewers and into unsuspecting residential toilets. In Portland, Oregon, one pest control company says it gets ten to 15 calls a year for rats in toilets, and it’s easy to speculate that… » 8/16/15 12:00pm 8/16/15 12:00pm

We're in a Technological Arms Race with Bears for Our Food

It's almost impossible to secure yourself against a food raid from bears. That's because these giant mammals are clever tool users, and they share their tech knowledge with other bears nearby. As a result, bear-proofing technology rarely works for more than a couple of decades before every bear knows how to crack it. » 8/14/15 6:43pm 8/14/15 6:43pm

Deep Sea Electricity May Have Kickstarted Life On Our Planet 

Curious about how life got started on Earth 3.8 billion years ago? Here’s a thought: Why not recreate ancient hydrothermal vents in the lab, and see if they produce enough juice to power a lightbulb? That, at least, is what a bunch of scientists at the Jet Propulsion Lab decided to do—and the electrifying results are… » 8/06/15 12:40pm 8/06/15 12:40pm

City-Dwelling Coyotes Prefer Urban Spaces Like Their Human Neighbors

Whether they’re howling at fire engines or hanging out in bars, coyotes have become a part of urban life. But a new study of LA coyotes by the National Park System has confirmed something that Angelenos have suspected for years: Coyotes aren’t just sauntering down our streets on their way to the local park. They… » 7/29/15 7:35pm 7/29/15 7:35pm