A new study based on mathematical modeling weighs in on the fierce debate among paleontologists over the origins of the king ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the ...

The remains of a giant "sea monster" found in a Mississippi riverbed have been determined to belong to the largest mosasaur ...

Being better able to tolerate cooler temperatures than their rivals, tyrannosaurs grew larger to become the apex predators of ...

Sebecids had a narrow and deep skull, superficially resembling that of a meat-eating dinosaur. Their teeth were similar to ...

Different types of crocs have inhabited Earth dating back to the Triassic Period more than 200 million years ago ...

Scientists have identified the fossilized remains of the oldest-known ant - a winged insect with fearsome scythe-like jaws ...

birds and dinosaurs including the feathered meat-eater Ubirajara. The ant’s predators may have included frogs, birds, spiders and larger insects. Ants have colonized almost everywhere on Earth ...

While rare, a few birds we studied were rule-breakers. One such rule-breaker is the Eurasian spoonbill, whose highly ...

Three decades ago, scientists began to find razor-sharp teeth from predators that had no business being there.