The bones of saber-tooth cats and extinct dire wolves from downtown Los Angeles still bear the marks of injuries sustained in battle more than 11,500 years ago, researchers say.
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Allosaurus Died From Stegosaur Spike to the Crotch, Wyoming Fossil Shows
Analysis of an Allosaurus fossil from southern Wyoming shows that the giant meat-eater died from a painful wound that appears to be unique in the fossil record: a deep stab…
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Tooth Found in Fossil Leg Bone Is ‘First Evidence’ of Clash Between Ancient Apex Predators
A tooth found embedded in a fossil leg bone is evidence of an unlikely battle between two top predators in the American Southwest some 220 million years ago — one…
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Ancient Cougars Survived Ice Age Extinction By Not Being Picky Eaters, Study Finds
Among the many puzzles posed by the massive extinction of mammals at the end of the last Ice Age is why North America’s saber-tooth cats and great native lions disappeared,…
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‘Cool’ New Arctic Tyrannosaur Discovered in Alaska Fossil
At a quarry on Alaska’s North Slope, scientists have found the fossil skull of an unusual new type of Arctic tyrannosaur. But this is no T. rex. At 70 million…
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New Species of ‘Bizarre’ Giant-Eyed Insect Discovered in Washington Fossil
A “bizarre” fossilized bug whose head was nearly covered by two giant, bulbous eyes may help explain the evolution of unusual predatory insects that are still flying today, paleontologists say….
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‘Colossal’ New Species of Predatory Dinosaur Dwarfed Tyrannosaurs, Scientists Say
An enormous new species of predatory dinosaur has been discovered in the fossil beds of southeastern Utah, paleontologists say, a “colossal” carnivore that was the apex predator of its day…
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America’s Saber-Toothed Cats Weren’t ‘Native,’ Study Finds
One of Ancient America’s most distinctive predators — the saber-toothed cat — likely wasn’t native to the continent, as had been thought for decades. Instead, according to a team of…
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New Tyrannosaur Species, ‘King of Gore,’ Reveals Origins of T. Rex
The oldest known ancestor of Tyrannosaurus rex has been discovered in southern Utah, throwing light on the evolutionary history of the famous predator, and providing crucial clues to the puzzling…
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Feathers Were ‘Peculiar’ to Special Set of Dinosaurs, New Fossil Study Finds
Some of the Ancient West’s most distinctive and downright weird dinosaur species — from the famous Tyrannosaurus rex to the odd therizinosaurs — turn out to be members of an…
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Croc-Like Reptiles, Giant Amphibians Found in Ancient Poop-Filled Pond
Scientists exploring the high-desert grasslands of northern Arizona have discovered a trove of remarkable Triassic animals, including croc-like ancestors of dinosaurs, carnivorous amphibians that grew as big as people, and…
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Dozens of Animals Discovered in Huge Wyoming Fossil Deposit
More than two dozen types of ancient animals — including at least two predatory dinosaurs, eight mammals, and a host of amphibians, sharks and other fish — have been unearthed…
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‘Magnificent T. Rex’ Found on Montana Ranch, Museum Reports (With Pictures)
A Dutch museum has announced that scientists searching for a fossil of Tyrannosaurus rex have finally found their quarry on a ranch in eastern Montana. The newfound T. rex fossil…
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T. Rex Tooth Found in Dinosaur’s Tail Proves Tyrannosaurus Was a Predator, Study Says
The telltale tooth of a Tyrannosaurus rex found embedded in the tail of a plant-eating dinosaur provides long-sought proof that the famous carnivore hunted and killed its prey, paleontologists announced…
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