1. Animals

    Tiny T. rex arms were built for combat

    The fearsome T. rex had more than a mouth full of killer teeth. Its relatively tiny arms also could have served in close combat as powerful slashers.

  2. Fossils

    Camo might have helped this armored dinosaur avoid becoming lunch

    An armored dinosaur the size of a Japanese sedan also wore camouflage, a new analysis of its skin suggests.

  3. Fossils

    T. rex may not have been able to run — but it was still pretty fast

    T. rex was fearsome, but its leg bones may not have been strong enough to stand the stresses of running.

  4. Animals

    Scientists Say: Dire wolf

    Dire wolves are an extinct species of wolf that roamed North America from about 300,000 to 12,000 years ago.

  5. Archaeology

    European fossils may belong to earliest known hominid

    New fossils suggest that the earliest non-ape human ancestors may have evolved in Europe, not Africa.

  6. Fossils

    Study claims to have found oldest human fossils

    Humans, as a species, may be much older than previously thought. They also may have evolved further North and West of the suspected cradle of human evolution.

  7. Animals

    How the house mouse found its home

    Once people started settling down 15,000 years ago, a mouse species followed them indoors. The animals didn’t need people to be farming and storing food.

  8. Archaeology

    This hominid may have shared Earth with humans

    Newfound fossils in South Africa point to a far more recent age for Homo naledi than had been accepted. If correct, this hominid might have coexisted with humans — even interacted with our species.

  9. Fossils

    Scientists are rethinking the dinosaur family tree

    The dinosaur family tree consists of three main branches. Or maybe not. A new study suggests a rewrite is due.

  10. Fossils

    Fossils offer new candidate for earliest life

    Rock unearthed in Canada appears to hold fossils from seafloor microbes that would have lived around 4 billion years ago, when Earth was very young.

  11. Archaeology

    Fossils point to Neandertal diets — and medicine use

    Whether Neandertals were largely meat-eaters or vegans depended on their environment, fossils now suggest. Their teeth also indicate they used natural medicines.

  12. Fossils

    What killed the dinosaurs?

    New evidence is emerging that a devastating combo of events — an asteroid impact and supervolcanoes — may be behind the dinosaurs’ demise.