Woodpeckers withstand more than 4,000 Gs without getting a concussion, yet humans only withstand up to 300 without getting one. An eye-opening video explains the difference in anatomy between humans and woodpecker brains as part of a larger playlist covering biology concepts. It describes what a concussion is, how it occurs, and the limits humans can handle. Then, it explains the theories and facts about woodpeckers and if scientists can apply any of this to prevent human concussions.