News

  1. Life

    Fake jellyfish so real it even swims

    Constructed of silicone and heart cells, medusoid moves like the real thing.

    By Rachel Ehrenberg
  2. Life

    Little animals spread sperm for smelly mosses

    Sex-specific odors may entice springtails to kick off fertilization.

    By Susan Milius
  3. Math

    Test decodes dolphins’ math skills

    Dolphins could use mental math to locate prey in clouds of bubbles.

    By Meghan Rosen
  4. Health & Medicine

    Sperm analyzed, one by one

    A close look at the sex cell’s DNA reveals basic molecular processes.

    By Tina Hesman Saey
  5. Space

    Black hole theory deepens lithium crisis

    A new proposal suggests a potential new source of the element as astrophysicists try to explain why it’s in such short supply.