What does a dog’s tail do when it is alert?

When a dog is alert, it wags its tail slowly and stares intently at its surroundings or visiting strangers. If the dog meets an animal clearly stronger than itself and feels afraid, its tail naturally drops and tucks between its legs. When a dog tucks its tail, do not keep approaching to avoid being bitten.

If the dog is afraid of an unfamiliar environment, the owner should comfort it promptly or take it somewhere familiar, to avoid an excessive stress reaction.