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Scientists grow humanized kidneys in pig embryos
Scientists have successfully grown kidneys made of mostly human cells inside pig embryos — taking researchers yet another step down the long road toward generating viable human organs for transplant....
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‘Crossings’ explores the science of road ecology
CrossingsBen GoldfarbW.W. Norton & Co., $30 Nearly 65 million kilometers of roadway crisscross the Earth — enough to encircle the planet more than 1,600 times — and that number will likely double...
View ArticleCrabs left the sea not once, but several times, in their evolution
Most terrestrial plants and animals left the ocean a single time in their evolutionary history to live ashore. But crabs have seemingly scuttled out of the sea more than a dozen times, with at least...
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An ancient, massive urban complex has been found in the Ecuadorian Amazon
Scientists have uncovered the Amazon’s earliest and largest example of farm-based citylike settlements high in the foothills of the Ecuadorian Andes. The thousands of mounds, plazas, terraces, roads...
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