Have you ever wondered why the Bald Eagle’s beak has a sharp curve at the end of the top of the beak yet sparrows’ beaks are short and end in a conical shape? A macaw’s beak is short and curved on the ...

Discoveries about evolution have long been intertwined with bird beaks. The huge variety of beak shapes among finches in the Galapagos Islands became emblematic of Charles Darwin’s theory of natural ...