Feral dogs
Feral dogs originate from domestic dogs which, by going back to wilderness, became wild again.
First dogs descended from wolves were domesticated around 12,000 years ago. Since then, some of them went back to the wild and became known as feral dogs. They live independently, without humans and do not interact closely with them. The most known one is Dingo in Australia.
Feral dogs can be found in India and other parts of Asia, where they are referred to as pariah-dogs. Pariah is tamil word for outcast. Some look a lot like Australian Dingo.
Also, feral dogs live all across Africa, on the edges of villages, where they are very useful for humans because by tracking down the food in the junkyards they keep them clean.