Science

WASHINGTON (Reuters) – A study of polar bear metabolism conducted near Alaska’s Prudhoe Bay has provided more reason to worry about the future of these massive predators that prowl the Arctic. Scientists said on Thursday they examined activity levels, foraging behavior and blood biochemistry of a group of polar bears during their prime hunting season
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WASHINGTON (Reuters) – Scientists have unearthed in a Sahara Desert oasis in Egypt fossils of a long-necked, four-legged, school bus-sized dinosaur that lived roughly 80 million years ago, a discovery that sheds light on a mysterious time period in the history of dinosaurs in Africa. Researchers said on Monday the plant-eating Cretaceous Period dinosaur, named
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WASHINGTON (Reuters) – A partial jawbone bearing seven teeth unearthed in a cave in Israel represents what scientists are calling the oldest-known Homo sapiens remains outside Africa, showing that our species trekked out of that continent far earlier than previously known. Researchers on Thursday announced the discovery of the fossil estimated as 177,000 to 194,000
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WASHINGTON (Reuters) – An analysis of fossils including the oldest-known Homo sapiens specimen has revealed that brain shape in our species evolved over time to become less elongated and more globular, a change that appears to have accommodated key advances in its function. Scientists said on Wednesday they examined brain size and shape based on
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LONDON (Reuters) – Chinese scientists have cloned monkeys using the same technique that produced Dolly the sheep two decades ago, breaking a technical barrier that could open the door to copying humans. Zhong Zhong and Hua Hua, two identical long-tailed macaques, were born eight and six weeks ago, making them the first primates — the
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TOKYO (Reuters) – Japan chastised a Kyoto University stem cell research team led by Nobel laureate Shinya Yamanaka on Tuesday after a team member fabricated data in his paper, saying it shook people’s trust in scientific research. Education Minister Yoshimasa Hayashi’s comments came a day after Kyoto University announced that a researcher at Yamanaka’s research
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WASHINGTON (Reuters) – There’s not a pot of gold at the end of the rainbow. There’s an iridescent dinosaur. Scientists on Monday announced the discovery of a crow-sized, bird-like dinosaur with colorful feathers from northeastern China that lived 161 million years ago during the Jurassic Period. They named it Caihong, the Mandarin word for rainbow.
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