Dogs know a left-sided wag from a right

You might think a wagging tail is a wagging tail, but for dogs there is more to it than that. Dogs recognize and respond differently when their fellow canines wag to the right than they do when they wag to the left. The findings ...

How tails help geckos and other vertebrates make great strides

A wagging tail is often associated with dogs' emotions, but the side-to-side motion may also help them take longer strides and move faster, according to a study by researchers at the University of California, Riverside.

Sony revives robot pet dog

Japanese electronics giant Sony is marking the year of the dog by bringing back to life its robot canine—packed with artificial intelligence and internet capability.