Search Results for: Bears

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6,895 results

6,895 results for: Bears

  1. Animals

    Biologists aflutter over just where monarchs are declining

    Citizen science data fuel debate over whether weed control ruined monarch habitat and whether the butterflies are failing to reach their Mexican winter refuge.

    By Susan Milius
  2. Animals

    Polar bears’ ‘walking hibernation’ not much of an energy saver

    Summer’s “walking hibernation” doesn’t shut down polar bears as much as winter does.

    By Susan Milius
  3. Planetary Science

    Quest to trace origin of Earth’s water is ‘a complete mess’

    Understanding the origin of Earth’s water is hard enough, and it’s made harder by not knowing where all that water is hiding.

    By Christopher Crockett
  4. Astronomy

    Kepler telescope identifies new ‘habitable zone’ planet

    A new analysis of data from NASA’s Kepler mission has uncovered a planet orbiting a sunlike star that could be Earth’s “cousin.”

    By Sarah Schwartz
  5. Animals

    Giant pandas live in the slow lane

    Giant pandas burn far less energy than similarly sized land mammals.

    By Meghan Rosen
  6. Life

    The tree of life gets a makeover

    Biology’s tree of life has morphed from the familiar classroom version emphasizing kingdoms into a complex depiction of supergroups, in which animals are aligned with a slew of single-celled cousins.

    By Susan Milius
  7. Science & Society

    Home-brewed heroin: Hold the hype

    Now is the time to think about policy for synthetically produced morphine, but the process, if it bears out, is years away from working.

    By Bethany Brookshire
  8. Paleontology

    Fossil worm adds head to its spiny appearance

    Hallucigenia sparsa gives hints to how some animals ended up with teeth in their guts and platelike pieces around their mouths.

    By Ashley Yeager
  9. Astronomy

    Big exoplanet may be surrounded by helium

    Warm Neptune-sized exoplanet might have atmospheres filled with helium.

    By Christopher Crockett
  10. Animals

    Pandas’ gut bacteria resemble carnivores’

    Unlike other vegetarians, the bamboo eaters lack plant-digesting microbes.

    By Meghan Rosen
  11. Animals

    When swimming with manatees, mind the herd

    Manatees hang out in Florida’s Crystal River; tourists can choose a mindful visit or a harmful one

    By Sarah Zielinski
  12. Humans

    Fossils suggest another hominid species lived near Lucy

    Fossil jaws dating to over 3 million years ago may add a new species to the ancient hominid mix.

    By Bruce Bower