Rancho San Antonio (near Cupertino, CA) is filled with coyotes, deer and (pictured above) woodpecker. Aside from the shmancy cars in the parking lot, you would have no way of knowing this was Silicon Valley. I go on long marathon-training trail runs out here, and I often hear the hollow sound of woodpeckers knocking themselves against trees. And it makes me wonder: how come woodpeckers don’t give themselves concussions? There is a scientific explanation for this. Stay tuned to this blog and find out.