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AnthropologyAfrican hominid fossils show ancient steps toward a two-legged stride
New Ardipithecus ramidus fossils reveal how hominids were shifting toward humanlike walking more than 4 million years ago.
By Bruce Bower -
PhysicsSupernovas show the universe expands at the same rate in all directions
Analyzing supernovas indicates that expansion rates agree within 1 percent across large regions of sky.
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Health & MedicineA ban on artificial trans fats in NYC restaurants appears to be working
New Yorkers’ levels of artificial trans fats dropped, especially in people who ate out the most, after a citywide ban on the fats in restaurant foods.
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AnimalsThe world’s largest bee has been rediscovered after 38 years
Researchers rediscovered the world’s largest bee living in the forests of an island of Indonesia.