Arctic wolves have small hairs between the pads of their feet and long, thick fur to keep them warm in temperatures that can drop to negative 70°. They live and hunt in packs, have a social hierarchy, or social order (ex. Alpha is leader, omega is bottom), and hold territories in which they hunt for food. To help reduce heat loss, they have rounder ears, shorter muzzles and legs than other gray wolf subspecies. Arctic Wolves howl to gather all the wolves up for a hunt.