Domestication of the Silver Fox

Scientists in Russia have been working on an experiment for the past few decades involving the domestication of silver foxes.  They were bred selectively through many generations based on temperament and tameness in order to fully domesticate them.  However, unexpected things happened throughout the experiment.  Traits that were never seen in the foxes before had emerged such as curly tails and floppy ears.  This article provides a new perspective on the genetic change that occurs as a result of domestication.