A Detailed Description of Why Human Skin Is Amazing

As Minute Earth rightly points out, we could avoid a lot of flesh wounds by having thicker armored skin like a pangolin. But the energy needed to generate and maintain that armor wasn't evolutionarily worth it for us to expend because we put so much fuel into our enormous brains. We can think of ways to escape danger… » 10/27/13 5:07pm 10/27/13 5:07pm

Our Garbage Is the Most Accurate Time Capsule of All

Time capsules are meant to give future generations a glimpse of what life was like many years ago. But not surprisingly, humans tend to fill time capsules with only the good artifacts of a civilization, making the story seem rosier than it really was. So when archaeologists and researchers want to find out the real » 8/19/13 8:45am 8/19/13 8:45am

We Don't Actually Know Why Plants Are Green

We already know why all plants appear green: it's because they're full of the light-absorbing chemical known as chlorophyll. But since they appears green—bouncing back green and yellow light waves—it means it's not 100 percent efficient at absorbing all of the sun's rays. So why aren't all plants black instead? » 3/15/13 11:06am 3/15/13 11:06am