Dogs were the first animals that people fed, earlier that sheep, cows or chickens. At first people had to try to scare the dogs away, but some people let them hang around.
The dogs ate rats and also helpeed to clean up food garbage. So “homes” with dogs were cleaner and healthier than “homes” without dogs. The people who lived in these cleaner places grew up stronger than people who shooed away dogs.
Dogs could let them know, if any big animals or human enemies were coming, and if the baby was getting into trouble. So people started to encourage the dogs to hang around. People also began teaching dogs to obey them and use the dogs to help them hunt other animals. It turned out that dogs could also guard sheep.
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