Bird beaks come in almost every shape and size - from the straw-like beak of a hummingbird to the slicing, knife-like beak of an eagle. We have found, however, that this incredible diversity is ...

Unlike most modern birds, the flightless group that includes ostriches and emus can’t move their upper beaks – a feature that, for the past 155 years, has been considered primitive.

The latest groundbreaking discovery concerns a bird from the late Cretaceous period with a very big beak — so big it charts a new course in evolutionary history. In a study published Wednesday ...