1. Paleontology

    Mosasaurs were born at sea, not in safe harbors

    Newly discovered fossils of prehistoric aquatic reptiles known as mosasaurs suggest that the creatures gave birth in midocean rather than in near-shore sanctuaries as previously suspected.

  2. Paleontology

    Stegosaur tails packed a punch

    A mathematical analysis of a fossil stegosaur's bones leaves little doubt that the creature's spike-studded tail was an effective defense against predators.

  3. Paleontology

    Africa’s east coast netted ancient humans

    Excavations of an exposed reef on Africa's Red Sea coast indicate that humans lived there 125,000 years ago, pushing back the date for the earliest seaside settlement by at least 10,000 years.

  4. Paleontology

    Dear Mummy: Rare fossil reveals common dinosaur’s soft tissue

    A mummified dinosaur unearthed in Montana a year ago is giving scientists a rare peek at what the creature's muscles and other soft tissues may have looked like.

  5. Paleontology

    Telltale Dino Heart Hints at Warm Blood

    A recently discovered fossil dinosaur heart is more like the heart of birds and mammals than that of crocodiles, providing further evidence that dinosaurs may have been warm-blooded.

  6. Paleontology

    Trilobites to Go

    Extinct even before dinosaurs existed on Earth but extensively preserved in the fossil record, the eight orders of trilobites (more than 15,000 species) live on via this large, informative Web site, created by zoologist and amateur trilobite enthusiast Sam Gon III. The site provides a gallery of images, a glossary of terms, and much more. […]

  7. Paleontology

    Dinosaurs, party of six, meat eating

    The bones of six carnivorous dinosaurs discovered in a fossil bed in Patagonia may indicate that big, meat-eating dinosaurs were social creatures.

  8. Paleontology

    Fossil gets a leg up on snake family tree

    A 95-million-year-old fossil snake with legs may be an advanced big-mouthed snake, not a primitive ancestor.

  9. Paleontology

    Salvaged DNA adds to Neandertals’ mystique

    Researchers who isolated a sample of Neandertal mitochondrial DNA say that it provides no evidence that Neandertals contributed to modern human evolution.

  10. Paleontology

    Veggie Bites: Fossil suggests carnivorous dinosaurs begat vegetarian kin

    Chinese rocks have yielded fossil remains of a creature that had rodentlike incisors and a hefty overbite, providing the first distinct dental evidence for plant-eating habits among theropod dinosaurs.

  11. Paleontology

    Sea Dragons

    About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.

  12. Paleontology

    Bone Crushers: Teeth reveal changing times in the Pleistocene

    Tooth-fracture incidence among dire wolves in the fossil record can indicate how much bone the carnivores crunched and, therefore, something about the ecology of their time.