Paleontology

  1. Ambopteryx longibrachium
    Paleontology

    Bat-winged dinosaurs were clumsy fliers

    The two known species of bat-winged dinosaurs were a dead end when it comes to the evolution of bird flight, a new study finds.

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  2. Megalodon shark illustration
    Paleontology

    Cannibalism in the womb may have helped megalodon sharks become giants

    The ancient sea terror Otodus megalodon may have grown to at least 14 meters long thanks to a firstborn pup’s predatory behavior, some researchers say.

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  3. Ancient ostracod species mating
    Animals

    A tiny crustacean fossil contains roughly 100-million-year-old giant sperm

    Giant sperm preserved in an ancient ostracod may be the oldest known sperm fossil, showing that giant sperm have existed at least 100 million years.

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  4. illustration on an ancient Lystrosaurus
    Paleontology

    Ancient Lystrosaurus tusks may show the oldest signs of a hibernation-like state

    Oddball ancestors of mammals called Lystrosaurus might have slowed way down during polar winters.

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  5. ichthyosaur fossil
    Paleontology

    This ichthyosaur died after devouring a creature nearly as long as itself

    Ichthyosaurs, marine reptiles generally thought to munch on soft prey like cephalopods, may have chowed down on fellow big marine reptiles, too.

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  6. Crocodylus checchiai illustration
    Paleontology

    An ancient skull hints crocodiles swam from Africa to the Americas

    A group of crocs, or at least one pregnant female, may have made a transatlantic journey millions of years ago to colonize new land.

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  7. Illustration of what Microraptor looked like
    Paleontology

    This dinosaur may have shed its feathers like modern songbirds

    One of the earliest flying dinosaurs, the four-winged Microraptor, may have molted just a bit at a time so that it could fly year-round.

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  8. soft-shelled dinosaur egg fossil
    Paleontology

    Fossil discoveries suggest the earliest dinosaurs laid soft-shelled eggs

    Finding soft-shelled dinosaur eggs in the fossil record for the first time has scientists rethinking how dinosaur eggs evolved.

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  9. illustration of crocodile ancestors walking on two legs
    Life

    Fossil footprints show some crocodile ancestors walked on two legs

    The 106-million-year-old tracks suggest that other puzzling nearby fossils were also likely made by a bipedal croc ancestor, not a giant pterosaur.

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  10. ancient brachiopod illustration
    Life

    These tube-shaped creatures may be the earliest known parasites

    Fossils from over 500 million years ago might be the first known example of parasitism in the fossil record, though the evidence isn’t conclusive.

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  11. anchovy ancestor
    Paleontology

    Saber-toothed anchovy relatives hunted in the sea 50 million years ago

    Unlike today’s plankton-eating anchovies with tiny teeth, ancient anchovy kin had lower jaw of sharp spikes paired with a single giant sabertooth.

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  12. gondwanatherian
    Paleontology

    A ‘crazy beast’ from the time of dinosaurs belongs to an obscure mammal group

    Paleontologists have finally matched a bizarre fossil, Adalatherium hui, to an obscure group of ancient mammals called gondwanatherians.

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