The answer is thought to lie in the development of the domestic dog.

It is known that domestic dogs get lost in the bush time and again.

It is also not clear if domestic dogs were part of early human activity.

But is a domestic dog a different species from a wolf?

However, this difference was not observed in all domestic dogs.

For domestic dogs the tie may last up to half an hour or more, though usually less.

Until recently, the only known definitive host was the domestic dog.

To add to the problem, natives kept other domestic dogs.

Others like the domestic dog originated only recently and have many close relatives.

It is seen as a sporadic condition in domestic dogs.