A little while ago I was looking for an active way to teach about the evolutionary dynamics occurring within each of us. So, finding the perfect excuse to learn someshiny, I built a simulation of an evolving stem cell niche that students can control—a fun evolutionary game to play!
Children who spend more time outdoors are less likely to become myopic. One study found that two hours per day of outdoor activity reduces the risk of myopia by about a factor of four compared with less than one hour per day.[2] Scientists believe that even before birth, boys’ and girl...