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Summary: Some dogs chase their tails because they see it moving and it looks like a toy, so they start chasing it. Learn more about why some dogs chase their tails and others do not with insight from a dog trainer in this free video on dog care.
Nancy Frensley is a certified pet dog trainer. She has been a dog trainer and behaviorist since 1985. Frensley is the K-9 program leader and training manager of the K-9 College at the...read more
"I'm Nancy Frensley. I'm the training manager at the Berkeley East Bay Humane Society, in Berkeley, California, and I've been asked why do dogs chase their tails. So, I'm going to have my friend Lolly here try to answer that question for you. Can you tell me why do dogs chase their tails? Now, Lolly has a problem, come, come here. She doesn't have one. So, I guess that she really, really can't answer that question. So, why do dogs chase their tails? Well, I think the main reason is because they can, but the thing that probably causes them to chase their tails is they see it moving and it looks like a toy, and then it looks like fun and they start trying to catch it, and before long they're going in, come on, they're going in circles, and circles, and circles and chasing their tails. Now, all dogs will not chase their tails. Only some dogs will do it. So, why do dogs chase their tails? Because it's there."
eHow Article: Why Do Dogs Chase Their Tails?