A dog is classed as reactive when it has an extreme reaction to a stimulus, such as a loud noise, another person, or a dog.

His name is Duke, and he is a police dog with an unusual occupation: He helps people calm down. Duke joined the Burnsville Police Department’s Behavioral Health Unit two years ago when his handler, ...

If you encounter a dog on the loose, staying still like a tree, avoiding eye contact, and not displaying threatening ...