Life

  1. Megalodon shark illustration
    Paleontology

    Cannibalism in the womb may have helped megalodon sharks become giants

    The ancient sea terror Otodus megalodon may have grown to at least 14 meters long thanks to a firstborn pup’s predatory behavior, some researchers say.

    By
  2. small-banded kukri snake tearing open toad stomach
    Animals

    This snake rips a hole in living toads’ stomachs to feast on their organs

    A particularly gruesome way to kill may help small-banded kukri snakes avoid toxins secreted from the neck and backs of some toads.

    By
  3. Asian giant hornet
    Life

    A new map shows where Asian giant hornets could thrive in the U.S.

    Suitable habitat along the Pacific West Coast means so-called “murder hornets” could get a foothold in North America if they aren’t eradicated.

    By
  4. blue whale
    Life

    Before migrating, some blue whales switch up the timing of their songs

    Pacific blue whales change the daily timing of their songs ahead of migration, helping scientists better anticipate these massive animals’ movements.

    By
  5. a handful of invasive Asian jumping worms
    Environment

    Invasive jumping worms damage U.S. soil and threaten forests

    Also known as snake worms, these writhing wrigglers turn forest leaf litter into bare ground, changing soil composition and ecosystems as they go.

    By
  6. nerve cells and a tiny robot
    Neuroscience

    Tiny, magnetically controlled robots coax nerve cells to grow connections

    Research using microrobots and nerve cells from rats could point to new treatments for people with nerve injuries.

    By
  7. Arctic winter under northern lights
    Ecosystems

    Trapped under ice, light-loving algae grow in the dark Arctic winter

    Blocked off from nearly all light beneath a thick layer of ice and snow in the winter, marine phytoplankton in the Arctic still find a way to thrive.

    By
  8. Partial image of Venus, which appears blue and swirly
    Space

    Hope for life on Venus survives for centuries against all odds

    Early scientists often assumed that Venus, though hotter than Earth, hosted life.

    By
  9. a photo of a hot spring
    Life

    Life on Earth may have begun in hostile hot springs

    What researchers learn at hot springs and seafloor vents may guide the search for life on icy moons and Mars.

    By
  10. Cuvier's beaked whales
    Animals

    A beaked whale’s nearly four-hour-long dive sets a new record

    The animals may rely on large stores of oxygen, a slow metabolism and the ability to tolerate lactic acid to go for hours without surfacing for air.

    By
  11. Mouse mom with pups
    Neuroscience

    A mother mouse’s gut microbes help wire her pup’s brain

    The pups of mice lacking gut microbes, and the compounds they make, have altered nerve cells in part of the brain and a lowered sensitivity to touch.

    By
  12. Ancient ostracod species mating
    Animals

    A tiny crustacean fossil contains roughly 100-million-year-old giant sperm

    Giant sperm preserved in an ancient ostracod may be the oldest known sperm fossil, showing that giant sperm have existed at least 100 million years.

    By