Bears are symbols of power and resilience. Birds are symbols of freedom and mystery. At first glance, these two creatures ...

Back to feet: Smaller birds with shorter legs, particularly species favoring trees, hop on land. Birds with longer legs are more likely to walk. Some, like American robins, do both, depending on need.

A study from the University of Alberta, which relied on images gathered from birders on the internet, examines the evolution of more than 1,000 bird species — namely their feet.

When a large asteroid hit Earth 66 million years ago, not all the dinosaurs went extinct. Birds, feathered dinosaurs that have thrived since the Jurassic, survived—and some of these birds were ...