Computer animators and video game designers may soon have a better way to create the purple-green sheen of a grackle's wing, or the pink flash on a hummingbird's throat, thanks to a new method for ...

You set up your bird feeder with eager anticipation. But no birds came to your feeder. Or, birds came for a while, but then ...

A dimple is a small natural indentation in the flesh on the part of the human body, most notably on the cheek. What are the ...