Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucat n Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...

In 1992, a paleontologist unearthed the fossil of a prehistoric bird called "Vegavis iaai" in Antarctica and hypothesized that it was an early relative of today's ducks and geese. However, because the ...

An artist’s interpretation of Vegavis iaai diving for fish in the shallow ocean off the coast of the Antarctic peninsula, with ammonites and plesiosaurs for company.