Why do dogs wag their tails?
Brains On! Science podcast for kids
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Wolf, Look at Your Fury!
Over time wolves probably realized that humans threw away delicious bones and other tasty treats. So they might have started hanging out around the places where people left their trash. People who study this think that over time these wolves became less frightened of humans. And when those wolves had puppies, the pups were also less frightened of people.
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