Yellowstone's diverse population of feathered creatures have captured the interest of scientist David Haines who is attempting to understand ecological and environmental changes in the park.

There are certain birds I have unusually good luck finding, and there are those that I have unusually bad luck finding.

Yes, you read that right. Bring home the most adorable holiday tradition by wearing matching Christmas pajamas with your entire family, including pets!

A selection of the week's best photos from across the African continent and beyond. It has been a night of contrasting emotions as vote-counting continues across key swing states. For 15 years ...