History of Dogs.
Dogs are a kind of wolf. They were the first animals that people fed on
purpose, earlier than sheep or cowsors chickens. People have been
taking care of dogs since about 13,000 BC, in the Stone Age, before the
beginning of farming (and possibly much earlier; maybe as long as 100,000 years
ago,
before people leftAfrican. Most likely, dogs
themselves began this relationship by hanging around people's campsites (there
weren't any villages yet), trying to snatch some of their garbage to eat. At
first, people must have tried to scare the dogs away. But after a while, some
of them realized that the dogs ate rats, and also helped to clean up food
garbage that drew flies and other insects. So campsites with dogs were
cleaner and healthier than campsites without dogs. Fewer people gotdysentery and died.
The people who lived in these cleaner campsites grew up
stronger than people who shooed away dogs, and there were more of them.
Eventually, the dog-lovers pretty much took over, all over the world. And dogs
evolved to be able to digest more and more people-garbage, especially grains.
