Why do dogs chase their tails?

17th December 2009
Why do dogs chase their tails?

Asked by: Anonymous

Sometimes it’s a side effect of hunting behaviour in an animal too dim to work out that the tail always escapes. But tail chasing can become obsessional. Bored dogs that don’t get enough exercise may use it to get their owner’s attention – even angry attention can be rewarding. Others, especially terriers, may have inherited it. There are many dogs taking antidepressants to control their compulsive tail chasing.