Modern birds are the living relatives of dinosaurs. Take a look at the features of flightless birds like chickens and ...

The uses of birds beak and their function are explained by Feeder 2, and through this, many different adaptations are ...

Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.

Cranial kinesis allows modern birds to eat a wider variety of foods and use their beaks as multifunctional tools.

Scientists suggest that bigger brains in bird ancestors led to more flexible skulls, playing a key role in their evolution.

“normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ostriches and emus and which has an ancestral bill-tip organ ...

The outer sheaths of birds’ beaks grow continually throughout their lives, but when they are properly aligned, the tips wear each other away and the beak stays straight and normal in length.

the extra torque helps other birds crack nuts and seeds. "In some ways, the beak functions like a surrogate hand, but being able to move the palate around while eating is also mission critical to ...