Velociraptor and prehistoric co. breathed like birds: study
527365
Small, fast-moving carnivorous dinosaurs had air-sac respiratory systems similar to modern-day penguins and other diving birds, scientists reported on Wednesday.
473649
Dinosaurs shared the Earth for millions of years with the species that were their ancestors, a new study concludes. Dinosaurs arose in the Late Triassic, between 235 million and 200 million years ago, and came to dominate the planet in the Jurassic, 200 million to 120 million years ago.
590716
U.S., Canadian and British scientists have created a new way of determining how extinct species moved that's independent of analyses of limb structure.
478386
Computer analysis of an African fossil indicates that a human-like creature walked upright six million years ago&#151;the earliest evidence of bipedalism found to date.
87100
Whale fossils found with tiny ear bones reveal for the first time how the ancestors of whales and dolphins developed their acute underwater hearing.
18171
Fossilized foot marks left by a big  meat-eater on a lake bed in northern Spain 125 million years  ago provide strong evidence that at least some dinosaurs were  good swimmers, scientists said on Thursday.
191306
The fossilized neck bones of a 230-million-year-old sea creature have features suggesting that the animal&#39;s snakelike throat could flare open and create suction that would pull in prey.
344559
London - A theory that birds may have had four wings during a stage of their evolution has been given fresh support with the discovery of a new fossil in China.
430811
LONDON - The earliest known relative of the mighty Tyrannosaurus rex had primitive feathers, probably to help it keep warm. Researchers at the Chinese Academy of Sciences in Beijing found the remains of the
747773
Fossils  uncovered in New Mexico  show dinosaurs co-existed with a closely related group of reptiles for millions  of years before overtaking them to become the dominant land animals on Earth.
295130
The last probable common ancestor to humans and great apes had a body like an ape, fingers like a chimp and the upright posture of humans, according to researchers who unearthed a fossil of the animal in Spain.
77349
Scientists on Thursday announced the fossil discovery of a very odd creature that swam the oceans 230 million years ago. It looked sort of like a dinosaur, but actually was another type of reptile.
71044
A fossil of a gliding animal shows that mammals experimented with flight around when birds first took to the skies.
636576
In China, scientists have identified the fossilized remains of a tiny dinosaur in the stomach of a mammal. Scientists say the animal's last meal probably is the first proof that mammals hunted small dinosaurs some 130 million years ago.
608923
Paleontologists have discovered the fossil of a new species of tiny prehistoric flying reptile in northeastern China, a study released Monday said.
117705
The finding of a dinosaur fossil in southern China has given new clues to the evolution and hunting practices of a long-necked aquatic reptile that lived some 230 million years ago, the magazine Science said on Thursday.
507603
Fossilized dinosaurs often have wide-open mouths, heads thrown back and tails that curve toward the head. Paleontologists have long assumed the dinosaurs died in water and the currents drifted the bones into that position, or that rigor mortis or drying muscles, tendons and ligaments contorted the limbs.  &quot;I&#39;m reading this in the literature and thinking, &#39;This doesn&#39;t make any sense to me as a veterinarian,&#39;&quot; said Cynthia Marshall Faux, a veterinarian-turned-paleontologist at the Museum of the Rockies. ...