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This Day in History
President Franklin D. Roosevelt signs a bill officially establishing the fourth Thursday in November as Thanksgiving Day. The tradition of celebrating the holid…
A distant cousin of Tyrannosaurus rex and Allosaurus, it likewise dined on meat.
In the long-running debate over whether dinosaurs were cold-blooded or warm-blooded, new research has suggested a middle ground.
Using old photographs and cutting-edge technology, scientists have digitally reconstructed a prehistoric dinosaur chase through an ancient riverbed in Texas.
A newly discovered species of tyrannosaur roamed the ancient Arctic 70 million years ago and was about half the size of its close cousin, Tyrannosaurus rex.
The giant asteroid that hit Earth some 65 million years ago may have propelled rocks big enough to shelter life all the way to Mars and the moons of Jupiter.
Researchers worry that black-market dino bones will be lost forever to science.
Researchers make a rare find: thousands of dino tracks along the Yukon River.
A new study of fossilized dinosaur eggs provides evidence of similarities between the nesting behaviors of dinosaurs and their closest living relatives – birds.
Theropod dinosaurs like Tyrannosaurus rex held their own in the water, according to new evidence.
Researchers believe the very first birds inherited a four-wing configuration from their dinosaur ancestors.
As 2012 comes to an end, explore some of the year’s stories, as covered by History in the Headlines.
New research shows that dinosaurs weighed significantly less than previous estimates.
Research suggests the marine reptiles known as pliosaurs got arthritis, and their dinosaur contemporaries might also have suffered from the condition.