At first glance, feathers may seem like simple parts of a bird’s body. But if you look closer—under a microscope or through a ...

One of the two Big Bear eaglets marked another milestone Thursday — hovering for the first time. The next step will be to ...

Known for its 6.5-foot wingspan and its crown-shaped head, the harpy eagle can travel upwards of 50 miles per hour through ...

22.Anacondas are absolutely gigantic. Here's what one looks like in the wild: I'd only ever seen one in that documentary with ...