Search Results for: Dinosaurs

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1,962 results

1,962 results for: Dinosaurs

  1. Earth

    Global Impact: Space object may have spread debris worldwide

    Sediments laid down about 3.47 billion years ago in what are now western Australia and eastern South Africa contain remnants of what may have been an extraterrestrial-object impact large enough to disperse debris over the entire planet.

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  2. Earth

    West Coast Shimmy: Smack from space triggered landslides along Pacific Coast

    Scientists say they've found the first evidence along the Pacific Coast of massive landslides triggered by the impact from space 65 million years ago that's suspected to have wiped out the dinosaurs.

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  3. Paleontology

    Study picks new site for dinosaur nostrils

    A new analysis of fossils and living animals suggests that most dinosaurs' nostrils occurred at locations toward the tip of their snout rather than farther up on their face, a concept that may change scientists' views of the animals' physiology and behavior.

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  4. Paleontology

    Sea Dragons

    About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.

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  5. Paleontology

    Sahara yields second-largest dinosaur

    Excavations near an Egyptian oasis have unearthed the fossils of an animal that probably ranks as the second-most-massive dinosaur known.

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  6. Paleontology

    Unknown creature made birdlike tracks

    Paleontologists have found a multitude of birdlike footprints left by a yet undiscovered creature in rocks more than 60 million years older than Archaeopteryx, the first bird to have left fossils of its body parts.

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  7. Paleontology

    Even flossing wouldn’t have helped

    Small particles trapped in minuscule cracks or pits in the teeth of plant-eating dinosaurs could give scientists a way to identify the types of greenery the ancient herbivores were munching.

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  8. Chemistry

    Buckyballs Can Come from Outer Space

    A new analysis settles the question of whether carbon molecules found in meteorites have an extraterrestrial origin.

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  9. Tech

    Building a Better Shuttle

    Researchers are working on both more heat-tolerant materials and totally new designs for vehicles that might ultimately replace the space shuttle.

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  10. Paleontology

    That’s no footprint, it’s got no toes

    The impressions near Isona, Spain, long thought to be fossilized dinosaur footprints may actually record the feeding behavior of stingrays.

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  11. Paleontology

    Two new dinosaurs chiseled from fossil gap

    A sleek predator and a pot-bellied giant dinosaur have emerged from North American rocks to fill in a 30-million-year gap in the dinosaur fossil record.

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  12. Ecosystems

    Move over, Leo. Give me more elbow room

    The average size of the largest land animals on each of 25 oceanic islands and five continents strongly depends on the land area there.

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