What if a human hit their head against a tree 20 times every second

What if a human hit their head against a tree 20 times every second? The first impact could cause a serious brain injury. Yet a woodpecker does it thousands of times without damaging its brain. How is that even possible? The answer lies in one of nature's most extraordinary biological engineering systems—where the skull, beak, tongue and muscles work together in ways that scientists are still studying. Watch till the end. The final reveal changes how you'll see this bird forever. #Woodpecker #WildlifeScience #Nature #biology #Science