This is the only known swimming dinosaur
New fossils suggest that Spinosaurus was a terror of Cretaceous seas
New fossils suggest that Spinosaurus was a terror of Cretaceous seas
Tough peer-review of "magical" approach didn't stop ultimate publication of now-retracted stem cell papers
Ancient flying reptile had throat pouch that may have let it snatch fish from the water
But effect has waned over time
Computer scientist criticizes report that finds her "unfit" for federal service
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