1. Earth

    Reliving the last day of the dinosaurs

    The Chicxulub crater is helping reveal what happened on the day a 12-kilometer-wide asteroid slammed into the Gulf of Mexico, 66 million years ago.

  2. Fossils

    This tiny dinosaur is officially T. rex’s cousin

    A newly identified dinosaur species fills a gap in the tyrannosaur family tree.

  3. Fossils

    Paleontologists find the first fossilized egg inside an ancient bird

    For the first time, paleontologists have found an unlaid egg inside an ancient bird fossil. That egg may have caused its mother’s death.

  4. Fossils

    Mini tyrannosaur fills big evolutionary gap

    A newfound dinosaur named “omen of doom” fills a gap in tyrannosaur evolution. It helps to narrow when the group sized up.

  5. Fossils

    Bones show ancient marine reptile was a big baby

    A new study of a rare baby plesiosaur reveals that these marine reptiles were huge at birth, then continued to grow speedily.

  6. Fossils

    This robot shows how an ancient creature might have walked

    Scientists used fossils, footprints, a computer models and a life-sized walking robot to find out how an ancient creature moved.

  7. Fossils

    These fuzz-covered flying reptiles had catlike whiskers

    New fossils are changing the look of ancient flying reptiles called pterosaurs.

  8. Fossils

    A skeleton named ‘Little Foot’ causes big debate

    New studies suggest a fossil hominid called Little Foot belongs to the species Australopithecus prometheus. Other scientists question whether such a species exists.

  9. Fossils

    T. rex pulverized bones with an incredible amount of force

    Tyrannosaurus rex’s powerful bite and remarkably strong teeth helped the dinosaur crush bones.

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    What ‘The Meg’ doesn’t quite get right about megalodon sharks

    A paleobiologist helps separate shark fact from fiction in the new Jason Statham film The Meg.

  11. Fossils

    There’s more than one way to build a giant dinosaur

    Some early long-necked dinosaurs may have built big bodies from a different blueprint than their later giant relatives.

  12. Fossils

    This extinct bird boasted dinosaur-like teeth

    Fossil skulls from an ancient bird shows this flyer had a beak — but dino-like chompers to chew through its prey.