1. Life

    How a newly identified bacterium saps corals of their energy

    A parasitic bacterium that preys on corals quickly reproduces when it senses more nutrients in its host.

  2. Climate

    Climate change may make El Niño and La Niña less predictable

    Atlantic Niñas and Niños have been fairly reliable bellwethers for severe El Niño and La Niña events in the Pacific. A warming world may change that.

  3. Animals

    Southern right whale moms and calves may whisper to evade orcas

    Mother-calf whale pairs call to each other quietly to stay in touch while avoiding attracting the attention of predators, a study suggests.

  4. Oceans

    A mysterious coral disease is ravaging Caribbean reefs

    Scientists are racing to learn what’s behind a disease that’s “annihilating” whole coral species in hopes of stopping it.

  5. Oceans

    The largest seaweed bloom ever detected spanned the Atlantic in 2018

    Nutrient-rich water from the Amazon River may be helping massive seaweed mats to flourish each summer in the Atlantic Ocean.

  6. Oceans

    The world’s fisheries are incredibly intertwined, thanks to baby fish

    A computer simulation reveals how one nation's management of its fish spawning grounds could significantly help or hurt another country's catch.

  7. Oceans

    Tiny plastic debris is accumulating far beneath the ocean surface

    Floating trash patches scratch only the surface of the ocean microplastic pollution problem.

  8. Climate

    The Southern Ocean may be less of a carbon sink than we thought

    The Southern Ocean’s ability to suck up much of the carbon that humans pump into the atmosphere is in question.

  9. Animals

    Endangered green sea turtles may be making a comeback in the U.S. Pacific

    The numbers of green sea turtles spotted around Hawaii, American Samoa and the Mariana Islands have increased in the last decade.

  10. Microbes

    A global survey finds that the Arctic Ocean is a hot spot for viruses

    Scientists mapped virus diversity around the world’s oceans. That knowledge may be key to making better climate simulations.

  11. Earth

    Warm, dry winds may be straining Antarctica’s Larsen C ice shelf

    Wind-induced melting that occurred during the Antarctic autumn may be accelerating the Larsen C ice shelf’s collapse, which could raise sea levels.

  12. Climate

    Antarctica’s iceberg graveyard could reveal the ice sheet’s future

    Drilling deep into the seafloor beneath Antarctica’s “Iceberg Alley” could reveal new clues about how quickly the continent has melted in the past.