A 69-Million-Year Evolutionary Mystery: Scientists Discover Oldest Modern Bird
New clues explore the age-old question: Does a duck always look like a duck and quack like a duck? Sixty-six million years ago, at the end of the Cretaceous Period,…
New clues explore the age-old question: Does a duck always look like a duck and quack like a duck? Sixty-six million years ago, at the end of the Cretaceous Period,…