Sid Perkins

Sid Perkins is a freelance science writer based in Crossville, Tenn.

All Stories by Sid Perkins

  1. Dressing up dinos

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

  2. Climate

    Acidifying ocean may stifle phytoplankton

    Chemical changes in seawater make a key nutrient less available to these organisms.

  3. Earth

    Hydrothermal vent environments not unchanging

    Once-rare organisms can become dominant, probably as some environmental conditions change over time.

  4. Earth

    Footprints could push back tetrapod origins

    Newly discovered trackways much older than previous evidence for sea-to-land transition.

  5. Earth

    Tides in Earth’s crust trigger small, deep quakes

    Study of one portion of the San Andreas fault finds that just a little added stress from crustal tides makes a quake more likely.

  6. Life

    Groovy teeth suggest dinosaur was venomous

    Fossils show depression in upper jaw that held venom-producing glands.

  7. Earth

    Mistletoe leaves a big carbon footprint in Yellowstone

    Earth sciences reporter Sid Perkins blogs on new research from the annual meeting of the American Geophysical Union in San Francisco.

  8. Earth

    Cameras catch underwater volcano in the act

    Seafloor eruption in the South Pacific is the deepest and most violent yet seen.

  9. Climate

    Carbon dioxide: Blame where blame is due?

    Blog: Measuring outsourcing of greenhouse gases. From the annual meeting of the American Geophysical Union.

  10. Earth

    Carbon dioxide: blame where blame is due?

    Tracking the outsourcing of greenhouse gas emissions.

  11. Earth

    Seismology in your backyard (and on your Twitter feed)

    With two USGS programs, Twitter, inexpensive seismic equipment transform citizens into scientists.

  12. Earth

    Earth’s magnetic field … updated

    Three most used models of Earth's magnetic field are revised to reflect small changes in the field.