These may include panting, pacing, or whining in addition to the tail-chasing. Dogs can show many signs of mental illnesses, like obsessive-compulsive behaviors such as tail-chasing and tail-chewing.

An curved arrow pointing right. A dog chasing its tail may be a sign of a direr issue. Like humans, dogs can suffer from a form of obsessive-compulsive disorder, called canine compulsive disorder.

Chasing dog tails for answers, researchers explore the reasons behind the quintessential tail wagging of these furry four-legged friends. Laura is an Assistant Editor for The Scientist. She has a ...

Dogs, like humans, go through several sleep cycles—wakefulness, rapid eye movement (REM) sleep and non-rapid-eye-movement sleep. In the REM sleep period, the most memorable and vivid dreams occur.

This and several other pieces of carved Caen stone were excavated in Canterbury in the 1980s. Professor Deborah Kahn has suggested that originally they may have been part of the early decoration ...

In its first two months, the PCIE put “in excess of $70 billion to better use,” and was responsible for “16,000 successful ...