The reason why dogs bury bones

Animals generally have a special habit, and different animals have different habits. Some animals store some food in advance in order to prevent "food loss". We call this habit food storage. For example, every autumn, Shrike birds often catch insects, frogs and other small animals that they like to eat and hang them on prickly branches or thorns so that they can eat them at any time. The purpose of catching small animals is still to prevent a shortage of food in winter. Squirrels have the same habit.

Dogs also have the habit of storing food. In the wild, dogs can often be seen digging holes with their claws, burying animal bones, and then covering them with soil. It turns out that the ancestors of dogs were wild carnivores, mainly feeding on grass such as rabbits. Sometimes they starve because they can't catch small animals. In order to prevent starvation, they gradually developed a habit of storing food, burying leftover small animals and other food into the soil. Later, after a long period of human training, although food is no longer scarce. But this food storage habit inherited by our ancestors has always been preserved.