Uncategorized

  1. Animals

    Polar bears sometimes bludgeon walruses to death with stones or ice

    Inuit reports of polar bears using tools to kill walruses were historically dismissed as stories, but new research suggests the behavior does occur.

    By Gloria Dickie
  2. Life

    If confirmed, tubes in 890-million-year-old rock may be the oldest animal fossils

    Newly described wormlike fossils may be ancient sea sponges. If confirmed, the fossils would reveal a remarkably early start to animal life.

    By Jake Buehler
  3. Life

    Near-invincible tardigrades may see only in black and white

    A genetic analysis suggests that water bears don’t have light-sensing proteins to detect ultraviolet light or color.

    By Erin Garcia de Jesús
  4. Astronomy

    The tiny dot in this image may be the first look at exomoons in the making

    New ALMA observations offer some of the strongest evidence yet that planets around other stars have moons.