1. Animals

    Fish lose their fear on a denuded reef

    Juvenile damselfish lose their ability to smell danger when in a degraded habitat.

  2. Oceans

    Unknowns linger for sea mining

    Scientists struggle to predict underwater digs’ effects on sea life.

  3. Climate

    Sharks could serve as ocean watchdogs

    Tagged with sensors, toothy fish gather weather and climate data in remote Pacific waters.

  4. Environment

    How oil breaks fish hearts

    Hydrocarbons that spill into oceans stifle the beat of tuna cardiac cells.

  5. Climate

    Strong winds may have waylaid global warming

    Gusts over the Pacific Ocean may have stashed heat underwater since 2001.

  6. Climate

    Arctic algae crusts preserve climate data

    The records show that sea-ice cover has been declining since 1850.

  7. Earth

    Fire may smolder under Antarctic ice

    Quakes hint at moving magma that could influence glacial flow.

  8. Oceans

    Extremely salty water is at least 100 million years old

    Supersaline sediments off East Coast shed light on Atlantic Ocean’s early history.

  9. Climate

    Tiny shells hint at hidden ocean warming

    Pacific waters are heating up 15 times faster than in earlier eras.

  10. Oceans

    Greenland Sea warming faster than world ocean

    Deep water temperature of Greenland Sea rises 0.3 degrees Celsius in 30 years.

  11. Oceans

    Glacier melt causes large fraction of sea level rise

    From 2003 to 2009, thawing ice nearly as large a contributor to oceans as massive sheets at poles, researchers find in new analysis.

  12. Oceans

    Life found deep below Antarctic ice

    Lake buried under 800 meters of ice hosts cells, researchers find.