Ewen Callaway

All Stories by Ewen Callaway

  1. Earth

    A crack and a fault in paradise

    Mauna Loa, Hawaii's most massive volcano, may be splitting the Earth's crust.

  2. Tech

    Smells like DNA

    By reshuffling the chemical letters of the genetic code, scientists have made short strands of DNA that can distinguish several different smells, such as explosives and food preservatives.

  3. Animals

    Bad berries

    A parasitic worm transforms ants into walking tropical berries.

  4. When Mice Fly: Bat DNA leads to longer limbs in mouse embryos

    Mice with a stretch of bat DNA grow longer limbs, a possible step in the evolutionary path to wings.