Squeaks mimic cries of prey animals, tapping into dogs' natural hunting instincts.
Squeakers engage dog's mind through sound, movement, unpredictability.
Squeaking allows safe physical release of energy and frustration.
Dogs find squeaky toys intrinsically rewarding - squeaks are feedback for play.
Squeaky toys provide mental/physical stimulation to combat boredom.
Squeakers encourage interactive play with owners.
For anxious dogs, squeaky toys provide distraction and stress relief.