A 69-million-year-old fossilized skull unearthed in Antarctica could rewrite the history of modern birds. The nearly complete skull belongs to Vegavis iaai, a prehistoric waterfowl species that ...

A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today ...

Modern birds, along with certain snakes and fishes, have skulls whose jaws and palates are not firmly fixed in place.