When dogs are stressed, just like us, they release noradrenaline, adrenaline, and cortisol. The result is the famed fight-or-flight response. In reality, there are five responses you might see in Pet-Dogs, —fight, flight, freeze flirt, or favor. This responses are crucial to the dog's survival.

FIGHT. This is active stress or active fear state. The dog may become aggressive to make the threat go away in a situation.

FLIGHT. Dogs may try to flee the situation. looking for escape routes. You’ll see signs such as sniffing on the ground, avoidance, hiding or a lower body posture, tail between the legs, panting or hiding behind objects or person.

FREEZE. Pets may stay motionless while whatever is happening around them plays out, but what’s going on inside is a different story.

FLIRT. This is a insecure state—the dog isn’t sure how to react to the situation. You’ll see lip licking, hackles, head low, ears back, panting, wale eyes, paw raising, floor sniffing,play bow and other displacement behaviors.

FAVOR: In this state, the dog seeks help from someone he trusts, in exchange he will be obedient to be guided to safety.