Search Results for: Vertebrates

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1,505 results
  1. Life

    Climate changes, and there goes the neighborhood

    The ranges of rattlesnakes and voles are likely to shift drastically with warming, analyses of past changes suggest.

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  2. Life

    Chicken cells have strong sense of sexual identity

    In birds, hormones may not be the last word in determining males and females.

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  3. Paleontology

    Dinos molted for a new look

    In one species, adolescents appear to have sprouted a new type of feathers as they matured.

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  4. Life

    For ducks, penis length depends on the other guys

    Male genitals grow longer with more competition from other males.

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  5. Paleontology

    Feather-covered dinosaur fossils found

    Scientists have uncovered a feather-laden, peacock-sized dinosaur that predates the oldest known bird.

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  6. Dawn of the Dinosaurs

    Paleontologists probe the majestic reptiles’ origin and rise.

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  7. Paleontology

    Tyrannosaurs lived in the Southern Hemisphere, too

    Australian fossils suggest the kin of T. rex dispersed globally 110 million years ago.

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  8. Earth

    Wringing hope from crashing biodiversity

    Biodiversity losses have not slowed despite a treaty designed to protect variety in the natural world.

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  9. Paleontology

    King of the ancient seas

    Paleontologists discover fossilized skeleton of bus-sized marine reptile that had teeth with serrated edges.

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  10. Animals

    Mirror, mirror on the wall, you’re the scariest fish of all

    That thing in the mirror may be more upsetting than a real fish.

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  11. Paleontology

    Octopus origins

    After examining more than 90 new specimens of Nectocaris pteryx, paleontologists put it near the root of the cephalopod evolutionary tree.

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  12. Life

    Spiders love sweet smell of blood perfume

    For on spider species, feeding on blood-gorged mosquitoes adds charm to a mate

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