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AnthropologyHuman brains rounded into shape over 200,000 years or more
Ancient humans’ brains slowly but surely became round, scientists say.
By Bruce Bower -
Science & SocietyMemory remains elusive, but the search continues
Acting Editor in Chief Elizabeth Quill explores the history of memory and scientists' search for its physical trace in our brains.
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CosmologyReaders wonder about the universe’s expansion and more
Readers had questions about the universe's accelerating expansion, a hidden void in the Great Pyramid of Giza and what happens to human waste in space.
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GeneticsBaby macaques are the first primates to be cloned like Dolly the Sheep
Scientists have cloned two baby macaque monkeys with the same technique used to clone Dolly.