Jumping cholla cacti spines are a prime example of how evolution creates specialized puncture tools. Tony Cyphert/Flickr, CC BY-NC-SA Most people probably aren’t thinking about the complexity of nature when they get stung by a bee or prick their thumb on a rose. They are probably just thinking, “Ouch, that hurts!” Even at this level of interaction, however, it is obvious not all things in nature that poke you are created equal. The rose prickle may draw blood, while the bee sting can leave an