Medieval longbow archers used a variety of arrowhead designs depending on the purpose of the shot. Different shapes were developed to maximize penetration, durability, or effectiveness against ...

, I’ll find myself walking through a freshly plowed field. Inevitably, I’ll spend as much time peering downward as I do listening skyward. I can’t help myself. I might be hunting gobblers, but I’m ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers analyzed 60,000-year-old arrowheads found in South Africa and discovered they had been tinged with poison. This is the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A new analysis of ...