Bird beaks come in almost every shape and size, but what determines the form they will take? Just how exactly […] ...

A shared shape rule, the power cascade, governs most bird beak growth. It links modern birds with extinct dinosaurs.

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 ...

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 ...