Sid Perkins

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

All Stories by Sid Perkins

  1. Climate

    Cultivation changed monsoon in Asia

    The loss of forests in India, China during the 1700s led to a decline in monsoon precipitation.

  2. Earth

    Phytoliths as climate clues

    Tiny silica plant structures from soil could track temperature changes.

  3. Earth

    Bricks, mortar and magnetism

    Medieval French castle, churches yield new data about Earth’s changing magnetic field.

  4. Earth

    A more organic meteorite

    Some meteorites may contain a higher concentration of organic chemicals than previously thought.

  5. Life

    Trees of stone tell tropical tale

    Peruvian petrified forest offers insight into low-latitude conditions of millions of years ago

  6. Life

    Life on Earth took a licking, kept on ticking

    Earth's early organisms may not have had to restart after a long spell of asteroid impacts.

  7. Paleontology

    Ancient fish with killer bite

    Dunkleosteus clamped down on prey with three-quarters-of-a-ton bite force.

  8. Archaeology

    Biocides inducing resistance in Lascaux cave’s microbes

    Study makes researchers wonder whether they should treat fungus or not.

  9. Life

    Portuguese trove of trilobite fossils

    Fossils include largest known trilobite specimen and groups of the ancient arthropods caught in the act of molting and spawning.

  10. Paleontology

    Soft tissue from a dino fossil

    Researchers have uncovered soft tissue and fragments of several proteins from a hadrosaur.

  11. Earth

    A limit for carbon emissions: 1 trillion metric tons

    To reduce risks of severe damage from climate change, humans should burn no more than 1 trillion tons of carbon in total, researchers suggest.

  12. Plants

    Climatic effects of tree-killing hurricanes

    A new analysis suggests storm damage returns millions of metric tons of carbon dioxide to the atmosphere each year.