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E.g., 09/24/2017
E.g., 09/24/2017
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  •  Gryposaurus monumentensis
  • Polypterus
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Your search has returned 518 articles:
  • News

    Shhhh! Some plant-eating dinos snacked on crunchy critters

    Some dinosaurs liked to cheat on their vegetarian diet.

    Based on the shape of their teeth and jaws, large plant-eating dinosaurs are generally thought to have been exclusively herbivorous. But for one group of dinosaurs, roughly 75-million-year-old poop tells another story. Their fossilized droppings, or coprolites, contained tiny fragments of mollusk and other crustacean shells along...

    09/21/2017 - 09:00 Paleontology, Animals
  • Rethink

    3-D scans of fossils suggest new fish family tree

    When it comes to some oddball fish, looks can be deceiving.

    Polypterus, today found only in Africa, and its close kin have generally been considered some of the most primitive ray-finned fishes alive, thanks in part to skeletal features that resemble those on some ancient fish. Now a new analysis of fish fossils of an early polypterid relative called Fukangichthys unearthed in China...

    09/18/2017 - 14:17 Animals, Evolution, Paleontology
  • News

    Like sea stars, ancient echinoderms nibbled with tiny tube feet

    Sea stars and their relatives eat, breathe and scuttle around the seafloor with tiny tube feet. Now researchers have gotten their first-ever look at similar tentacle-like structures in an extinct group of these echinoderms.

    It was suspected that the ancient marine invertebrates, called edrioasteroids, had tube feet. But a set of unusually well-preserved fossils from around 430 million...

    09/12/2017 - 19:05 Paleontology, Animals
  • News

    Woolly rhinos may have grown strange extra ribs before going extinct

    As time ran out for the woolly rhino, strange things happened. Before going extinct, some of the beasts faced an unusually high risk of growing bizarre ribs in their neck, a new study suggests. Those misplaced ribs might have signaled the animals’ impending demise.

    Scientists examined neck bones from 32 woolly rhinos and found indented spots on five of them where ribs had once attached...

    09/07/2017 - 11:00 Paleontology, Evolution, Physiology
  • Introducing

    This ancient sea worm sported a crowd of ‘claws’ around its mouth

    View the video

    Predatory sea worms just aren’t as spiny as they used to be.

    These arrow worms, which make up the phylum Chaetognatha, snatch prey with Wolverine-like claws protruding from around their mouths. Researchers now report that a newly identified species of ancient arrow worm was especially heavily armed. Dubbed Capinatator praetermissus, the predator had about 50 curved...

    08/23/2017 - 11:00 Paleontology, Animals
  • News

    Infant ape’s tiny skull could have a big impact on ape evolution

    A 13-million-year-old infant’s skull, discovered in Africa in 2014, comes from a new species of ape that may not be far removed from the common ancestor of living apes and humans.

    The tiny find, about the size of a lemon, is one of the most complete skulls known of any extinct ape that inhabited Africa, Asia or Europe between 25 million and 5 million years ago, researchers report in the...

    08/09/2017 - 13:00 Anthropology, Human Evolution, Paleontology
  • Rethink

    Fossil find suggests this ancient reptile lurked on land, not in the water

    A round belly, stubby feet and a tapering tail made one armored reptile a lousy swimmer. Despite earlier reports, Eusaurosphargis dalsassoi might not have swum at all, scientists now say.

    E. dalsassoi was first identified in 2003. Fossils were found near Monte San Giorgio at the Swiss-Italian border alongside the remains of marine reptiles and fish that lived roughly 240 million years...

    08/09/2017 - 07:00 Animals, Paleontology
  • News

    Giant armored dinosaur may have cloaked itself in camouflage

    Sometimes body armor just isn’t enough. A car-sized dinosaur covered in bony plates may have sported camo, too, researchers report online August 3 in Current Biology. That could mean the Cretaceous-period herbivore was a target for predators that relied on sight more than smell to find prey.

    The dinosaur, dubbed Borealopelta markmitchelli, has already made headlines for being one of the...

    08/03/2017 - 12:15 Paleontology, Animals
  • Science Ticker

    New fossils shake up history of amphibians with no legs

    Newly named fossils suggest that a weird and varied chapter in amphibian deep history isn’t totally over.

    Small fossils about 220 million years old found along steep red slopes in Colorado represent a near-relative of modern animals called caecilians, says vertebrate paleontologist Adam Huttenlocker of the University of Southern California in Los Angeles.

    Caecilians today have long...

    06/19/2017 - 15:30 Paleontology, Animals, Evolution
  • News

    Ancient attack marks show ocean predators got scarier

    In pumped-up sequels for scary beach movies, each predator is bigger than the last. Turns out that predators in real-world oceans may have upsized over time, too.

    Attack holes in nearly 7,000 fossil shells suggest that drilling predators have outpaced their prey in evolving ever larger bodies and weapons, says paleontologist Adiël Klompmaker of the University of California, Berkeley. The...

    06/15/2017 - 16:12 Paleontology, Evolution