Ice Pigeons . Graham Manning / Wikimedia Commons / CC BY-SA 3.0. Feral pigeons are normally gray with purple- and green-painted necks, but this domesticated variety is icy blue ...

Pigeon Forge has all kinds of unique shops and attractions, and it's constantly getting new ones added in to mix, and now, it will have a liquid nitrogen ice cream shop to add to the ever-growing ...

Picture a pigeon: gray body, ... and the distantly related ice pigeon below. And although this form of trait selection is artificial, it’s a good example of how evolution works.