Jeanne Timmons

  • Sexing Dinos: Paleontologists Seek Fossilized Hormones

    Sexing Dinos: Paleontologists Seek Fossilized Hormones

    How can you tell if a dinosaur is female or male? It’s one of the most basic aspects of biology and yet, for the most part, it continues to be a mystery in paleontology. We don’t yet know the sex of most extinct species, even if those in museum displays have gender-specific names like Sue…


  • These Fossil Mummies Reveal a Brutal World Long Before T. Rex Lived

    These Fossil Mummies Reveal a Brutal World Long Before T. Rex Lived

    It was a time of catastrophic change. Most of life on Earth had been wiped out, global temperatures had increased dramatically, and the weather raged in extremes. That anything survived in this hostile environment is remarkable, and yet, some plants and animals persisted. One such survivor was Lystrosaurus, a four-legged herbivore with a beaked snout…