Feature

  1. Animals

    Animals give clues to the origins of human number crunching

    Guppies, dogs, chickens, crows, spiders — lots of animals have number sense without knowing numbers.

    By Susan Milius
  2. Astronomy

    Star-starved galaxies fill the cosmos

    Astronomers are detecting hundreds of galaxies that are almost devoid of stars. There are at least four theories on how they got that way.

    By Christopher Crockett
  3. Paleontology

    Dinosaurs may have used color as camouflage

    Fossilized pigments could paint a vivid picture of a dinosaur’s life.

    By Meghan Rosen
  4. Life

    Lichens are an early warning system for forest health

    Lichens, fascinating mosaics of fungi and algae or cyanobacteria, are made for sensing environmental change.