Search Results for: Vertebrates

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1,545 results

1,545 results for: Vertebrates

  1. Paleontology

    Healed scars tag T. rex as predator

    Healed wounds on the fossil skull of a Triceratops—wounds that match the size and shape of those that would be made by Tyrannosaurus rex—are a strong sign that the tooth scrapes are a result of attempted predation, not scavenging.

    By Sid Perkins
  2. Paleontology

    Ancient atmosphere was productive

    New laboratory experiments suggest that extra carbon dioxide in the atmosphere in the era just before the dinosaurs went extinct may have boosted plant productivity to at least three times that found in today’s ecosystems.

    By Sid Perkins
  3. Animals

    First Impressions: Early view biases spider’s mate choice

    In a new wrinkle on how females develop their tastes in males, a test has found that young female wolf spiders that see a male's courtship display grow up with a preference for that look in mates.

    By Susan Milius

  4. Let there be light

    New technology illuminates neuronal conversations in the brain

    By Tina Hesman Saey

  5. Dressing up dinos

    Adding soft tissue to bone helps scientists, paleoartists bring ancient creatures to life.

    By Sid Perkins
  6. Plants

    Losing life’s variety

    2010 is the deadline set for reversing declines in biodiversity,  but little has been accomplished.

    By Susan Milius

  7. All Patterns Great and Small

    Researchers uncover the origins of creatures’ stripes and spots.

    By Tina Hesman Saey

  8. Moody tunes

    To explore the effect that music has on the mind, Science News asked researchers to share a song they enjoy and the emotion it evokes.  Ethan Ross, physicianSong: “Dark Star” by the Grateful Dead Emotion: “Elation, euphoria and wonder.” Virginia Naples, vertebrate paleontologist Song: “The Wreck of the Edmund Fitzgerald” by Gordon Lightfoot Emotion: “Sadness […]

    By Science News

  9. Dawn of the Dinosaurs

    Paleontologists probe the majestic reptiles’ origin and rise.

    By Alexandra Witze
  10. Ecosystems

    Famine reveals incredible shrinking iguanas

    Marine iguanas in the Galápagos Islands are the first vertebrates known to reduce their size during a food shortage and then regrow to their original body lengths.

    By Susan Milius

  11. Blood cues sex choice for parasites

    Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.

    By John Travis

  12. For geneticists, interference becomes an asset

    A new method of disrupting genes, called RNA interference, works in mouse cells.

    By John Travis