A Canada jay (Perisoreus canadensis) perches on a branch in upstate New York’s Adirondack Park. This photo was the bronze award winner in the Best Portrait category.
A comprehensive analysis of Tyrannosaurus rex fossils is surprising scientists with just how long these apex predators took to become big boys.
Paleontologists have long debated whether small tyrannosaurs were their own species or simply teenage T. rexes. This debate just got a major shake-up.
Two duck-billed dinosaur carcasses were preserved in a thin layer of clay for 66 million years. Now, they’ve helped researchers recreate their living appearance.
"Just be sure you’ve got a big backyard."
Rock layers deposited before and after the major dinosaur extinction event 65 million years ago are surprisingly different.
Spicomellus clearly didn't need sharp teeth to make an impression.
