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Human-Neandertal Mating Gets a New Date
A new study suggests that present-day Europeans share more genes with now-extinct Neandertals than do living Africans, at least...
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Watch Out Urbanites, Here Come the Carnivores
Raccoons, skunks, possums and certain other animals have long been city dwellers, but now larger wild carnivores are moving...
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Skulls Engineered for Hard Knocks
The braincase of a skull may well be, as advertised, a strongly built and cleverly engineered structure, but listening...
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Did Eating Meat Make Us Human?
Fragments of a 1.5-million-year-old skull from a child recently found in Tanzania suggest early hominids weren’t just occasional carnivores...
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How Dangerous Is Space Debris?
'Extremely' is the answer. Being hit by a 'sugar-cube' of space debris is the equivalent of standing next to...
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Ancient Empires Produced Significant Greenhouse Gasses
An analysis of Greenland ice core samples indicates significant global methane emissions per capita during the Roman Empire and...
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Remains of Fanged, Tiny Veggie Dinosaur Found
A “punk-sized” dinosaur with porcupine-like bristles featured some flashy stabbing self-sharpening fangs – although it likely only had a...
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With Limited Budgets, Pursuing Science Smartly
President Obama and his challenger, Mitt Romney, each responded at length to a question posed by ScienceDebate 2012 about...
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The $1 Billion Journey to the Mantle of the Earth
In an unprecedented $1 billion mission to reach the Earth’s mantle, geologists are set to start drilling 3.7 miles...
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Tree Rings Reveal Amazon’s Rainfall History
Samples from eight cedar trees in Bolivia have helped shed light on the seasonal rainfall in the Amazon basin...