Search Results for: Dinosaurs

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1,962 results

1,962 results for: Dinosaurs

  1. Humans

    From the July 3, 1937, issue

    A spectacular freak photograph of a solar eclipse, meteorites as the remnants of lost planets, and inducing dropsy in animals.

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  2. Paleontology

    Mammals started flying when birds did

    The first gliding mammal winged through forests at least 70 million years earlier than scientists had previously presumed, a new fossil shows. The specimen dates from about 150 million years ago, during the time when birds were developing flight. ANCIENT GLIDER. Volaticotherium antiquus was gliding through ancient forests 150 million years ago. The creature weighed […]

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  3. Earth

    Ancient hot spell is linked to copious carbon dioxide

    A mineral that formed in some lakes during a lengthy and particularly warm period in Earth's past suggests that atmospheric concentrations of carbon dioxide were at that time at least triple those found in today's air.

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  4. 19655

    I am rather surprised at all the attention the find mentioned in this article is getting. Some would think that these mammals caused the downfall of the dinosaurs, but the fossil record suggests a very different scenario. There is no evidence of possum-to-coyote–size mammals for the 70-odd million years that the dinosaurs ruled the planet. […]

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  5. Earth

    Flow West, Young River: Ancient Amazon ran opposite today’s route

    The forerunner of the mighty Amazon ran from east to west, a new analysis of rocks laid down by that ancient river suggests.

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  6. Paleontology

    Ancient Grazers: Find adds grass to dinosaur menu

    Analyses of fossilized dinosaur feces in India reveal the remains of at least five types of grasses, a surprising finding that's the first evidence of grass-eating dinosaurs and an indication that grasses diversified much earlier than previously recognized.

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  7. Humans

    Letters from the February 4, 2006, issue of Science News

    Double trouble? “Sleep apnea could signal greater danger” (SN: 11/26/05, p. 349) says that “twice as many … with sleep apnea had a stroke or died of that or another cause. …” This sounds serious, but your readers can’t correctly assign importance to “twice as many” because you omit numbers of deaths. David KollasTolland, Conn. […]

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  8. Paleontology

    Out of the Shadows

    An ongoing flurry of fossil finds is triggering a reevaluation of how early mammals and their close kin eked out an existence during the Age of Dinosaurs.

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  9. Humans

    Letters from the May 27, 2006, issue of Science News

    Dig it or don’t I am rather surprised at all the attention this find is getting (“Out of the Shadows: Not all early mammals were shy and retiring,” SN: 3/18/06, p. 173). Some would think that these mammals caused the downfall of the dinosaurs, but the fossil record suggests a very different scenario. There is […]

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  10. 19614

    The picture caption in this article states, “This phytolith, which was extracted from fossilized dinosaur dung unearthed in India, indicates that the reptiles dined on grasses.” I do believe that dinosaurs aren’t classified as reptiles. Patricia GriffithAmerican Canyon, Calif. Confusion in this area stems from the fact that not all ancient reptiles were dinosaurs. But […]

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  11. Astronomy

    Assault on Andromeda: Nearby galaxy had recent collision

    New findings suggest that a small galaxy recently plunged into Andromeda, opening a new window on collisions that are rare today but were common in the early universe.

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  12. Paleontology

    Sight for ‘Saur Eyes: T. rex vision was among nature’s best

    A study of dinosaur eyes finds that Tyrannosaurus rex had very sophisticated vision that may have helped its predatory abilities.

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