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What This Optical Illusion Reveals About the Human BrainYou can interpret the image as either one of these animals or the other, but not both at the same time.
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Europe's Clocks Are Losing Time, and Here's WhyIt's the former Yugoslavia's fault.
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Owls Dying Near Marijuana Farms (Here's Why)If asked, spotted owls would likely vote against marijuana legalization.
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Frozen Sharks Washing Up on Cape CodThe thresher sharks likely didn't die of hypothermia.
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This Tiny Sea Monster Had Creepy Mouth AppendagesThe long-extinct sea predator flourished during the middle Cambrian period about 508 million years ago.
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Cave of the 'Mayan Underworld' Filled with Methane-Eating CreaturesIn a submerged cave network in the Yucatan, methane is an unlikely driving force for life.
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World's Smallest Tape Recorder Is AliveScientists have converted a bunch of microbes into what they've dubbed the "world's smallest tape recorder."
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'Octlantis': Bustling Octopus Community Discovered Off AustraliaThe bustling octopus community of "Octlantis" belies conventionally held notions of the cephalopods, once thought to be solitary and asocial.
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No Sweat: Small Doses of Exercise May Ward Off DepressionAnyone who has experienced the euphoric "runner's high" that follows a satisfying workout will likely attest to a connection between physical activity and mental health.
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40 Percent of Cancer Cases in US Linked to WeightBeing overweight or obese increases a person's risk for at least 13 types of cancer, according to a new report.
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11 Animals Named After US PresidentsIn honor of the birth of American independence, here are U.S. presidents who have been immortalized in "life's filing system."
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Air Pollution May Make Solar Panels Less EfficientFrom inefficient grids, shortfalls in policy, and even an eclipse, solar-energy collection faces no shortage of hurdles. Scientists have discovered another stumbling block: air pollution.
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Chewbacca to Jabba the Hutt: 10 Real 'Star Wars' Beasts in the Animal KingdomFrom Star Wars characters Wookies to the sarlacc in the Pit of Carkoon, here are 10 creatures you might recognize in the here and now.
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The True Costs of Renewable EnergyWant to get off the grid? Here's what it'll cost you.
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10 species you can kiss goodbyeCreatures on the verge of disappearing unless something drastic is done.
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8 Signs the Animal Kingdom Is Out of WhackRising temperatures are affecting the animal kingdom in many subtle ways.
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The Language of Going GreenSharpen your environmental vocabulary.
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Why Oil Prices SkyrocketedA heated battle of blame is in full swing. Here's what's known.
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10 Ways to Green Your Spending
