Tag Archives: Fossils

Natural selection also increases the adaptability of the organism

[ad_1] Everywhere we look in the natural world, there is evidence of natural selection: the resin armor of a lodgepole pine cone evolved to defend itself against seed-hungry birds and squirrels, or a giraffe’s long neck was evolutionarily favored to reach high vegetation that the competition cannot touch. Natural selection …

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The scientist joins the next adventure on Mars

[ad_1] Kirsten Siebach has to persevere a little longer, waiting for her ship to arrive. That ship is in space and is carrying a rover called Perseverance to Mars. And Siebach, a Martian geologist at Rice University, is now one of 13 scientists recently selected by NASA to help run …

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Saber-toothed cats were amazing heavyweights

[ad_1] In the Pleistocene era, the big cat Smilodon they roamed parts of the Americas, using blade-like teeth and ambushing to take down the megafauna. Of Fernando G. Baptista is Patricia Healy PUBLISHED November 30, 2020 A version of this story appears in the December 2020 issue of National Geographic …

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The study reveals the true origin of the oldest evidence of animals

[ad_1] Two teams of scientists have resolved a longstanding controversy over the origins of complex life on Earth. The joint studies found that molecular fossils extracted from 635-million-year-old rocks are not the earliest evidence of animals, but instead common algae. Researchers from the Australian National University (ANU), Max Planck Institute …

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