Biosphere

  • Digital Zookeepers Take a Census
    Cataloguing the taxonomy of an entire planet's history, a 'digital zoo' holds great promise for resolving century-old debates about how the Earth got to be such a rich spawning ground for life's diversity.
    more...
  • Biological Diversity: Fact or Artifact?
    It's one of the biggest questions of biology. How did biodiversity change after the 'Cambrian explosion' 540 million years ago?
    more...
  • Evolution’s Slow Recovery
    The biosphere bounces back from mass extinctions with the origin of new species.
    more...
  • Evolution's Slow Recovery
    The biosphere bounces back from mass extinctions with the origin of new species.
    more...
  • The Great Dying
    250 million years ago something unknown wiped out most life on our planet. Now scientists are finding buried clues to the mystery inside tiny capsules of cosmic gas. earthshine.html
    more...
  • Digital Zookeepers Take a Census
    Cataloguing the taxonomy of an entire planet's history, a 'digital zoo' holds great promise for resolving century-old debates about how the Earth got to be such a rich spawning ground for life's diversity.
    more...
  • Photosynthesis: Take It or Leave It
    A serendipitous examination of ocean waters last year brought a big surprise for a team of US and Canadian scientists, a surprise that's causing marine ecologists to rethink the details of how ocean ecosystems function.
    more...
  • A Greener Planetary Greenhouse
    In recent years Earth-orbiting satellites have seen plants growing more vigorously than usual over northern parts of our planet.
    more...
  • Guerrero Negro
    Guerrero Negro is a popular destination for ecotourists to gaze at the gray whales, but scientists go to investigate an ecosystem that hold important clues to what life was like on early Earth.
    more...
  • Starved for Nitrogen
    A team of researchers, including a NASA scientist, reports that an early-life nitrogen crisis may have triggered a critical evolutionary leap about 2 billion years ago.
    more...