Modern-day dogs are all probably descendants of wild wolves. Wolves would have stayed close to humans because there was food to be found. In turn, people gained protection from having the wolves close by. As the two gradually become increasingly used to being close to each other, the wolves would have become less aggressive.
Eventually it reached the point where the wolves were living in among human dwellings. Evolution would have meant the wolves that lived with humans lost certain traits and gained others as they adapted to their new environment.
The wolves that stayed close to humans became more than just wild animals to the humans. At one point the wolves would have become domesticated and people would have used them to help them in many ways. It was to become a relationship that is still strong today, and dogs are one of the most popular companions for humans everywhere.
Did you know that dogs can smell thousands of times better than humans. Their noses have millions more scent receptors—for example, a human nose averages 5 million while a Dachshund’s nose has 125 million—making them useful in sniffing out drugs, dead bodies, bed bugs, explosives, and more.
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