Mother bears use precise neck bites to discipline cubs
Animals
By controlling their massive strength to the ounce, grizzly mothers use gentle physical cues to teach their cubs how to survive encounters with dangerous 800-pound males.
A grizzly mother can crush a bowling ball with a single bite, yet she uses that same 1,200 pounds of pressure per square inch to gently guide her cubs by the scruff of the neck. This precise discipline is a survival necessity, as she must frequently redirect 15-mile-per-hour charges to keep her young away from aggressive adult males that often outweigh her by 500 pounds. These interactions are less about aggression and more about arboreal training, teaching the cubs to scramble up trees at the first sign of a wandering predator.