Science

Highlights

  1. PhotoThe Nautilus, a research vessel, towing an underwater remotely operated vehicle that was used to hunt for the airplane of Amelia Earhart, which disappeared in 1937.
    CreditRobert Lyall/National Geographic

    The Amelia Earhart Mystery Stays Down in the Deep

    Robert Ballard’s expedition to a remote island in the South Pacific found no evidence of the vanished aviator’s plane. But the explorer and his crew haven’t given up.

  2. PhotoA koala being treated for chlamydia in Port Macquarie, Australia.
    CreditSuzi Eszterhas/Minden Pictures

    A Virus in Koala DNA Shows Evolution in Action

    Many animals, including humans, have DNA left over from ancient viral infections. In koalas, researchers are studying the process in real time.

  3. Trilobites

    PhotoOf all sharks and rays, the two species of mantas are the only ones known to exhibit melanism.
    CreditStephanie Venables

    The Mystery of the Melanistic Manta Rays

    Scientists are trying to work out why some manta rays have black blotches on their skin, which is uncommon in the oceans.

Advertisement

Trilobites

More in Trilobites »
  1. PhotoA side view of a 9-day-old embryonic chicken gut.
    CreditNicolas Chevalier/CNRS/Université de Paris & Thomas Guilbert/IMAG’IC Facility Institut Cochin

    The Twitch That Helps Your Intestines Grow

    Pulsing movements in an embryo are crucial to helping intestines grow into the wonder tube that it is, a study finds.

  2. PhotoDoes a sleeping octopus — this one is not Heidi — change colors to match an experience it had while awake? Or is the explanation simpler, nothing more than the twitching of muscles that control color-changing organs?
    CreditRuslan Olinchuk/Alamy

    Was Heidi the Octopus Really Dreaming?

    They’re far from us on the tree of life, and their brains are very different, and some scientists say we should take care before we assume that cephalopods sleep like we do.

Advertisement

Advertisement