Hunter-gatherers may have had more meat than they could eat, which they shared with wolves – inadvertently beginning the domestication of dogs
Source:
https://www.newscientist.com/article/2264329-humans-may-have-domesticated-dogs-by-accident-by-sharing-excess-meat/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home