Tyrannosaurus rex was an opportunistic feeder, not a top predator, paleontologists say.

The Museum of Science, Boston today announced that it will unveil an extremely rare dinosaur fossil for the first time to the public this fall - a skeleton of Triceratops horridus that was auctioned at Christie's in Paris earlier this spring.

There's no cloning or mysterious tropical islands involved, but American paleontologists have come closer to seeing a real-life Tyrannosaurus Rex in the flesh than anyone else ever has. Looking inside a young T.

Paleontologists have recovered what appear to be soft tissues from the thighbone of a 70 million-year-old Tyrannosaurus rex, potentially enabling dinosaur research to make a leap into the study of the animals' actual physiology and perhaps even their cell biology, they said Thursday.