4. “Burying” toys
Burying their valuables under the ground or bed is dogs' instinctive behavior. In the past, while they were living in the wild, dogs would bury their food, which was a left over from a meal and then they would get back to it later. Dogs today are burying toys, because they take them as their real treasure – at least those who don't have to worry about food. And don't think they will forget where they hid their stuff…
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