If you can't get a tan and burn your skin unprotected by a sun screen after just 15-20 minutes of staying in the sun, you can blame it on your ancestors who lived in the northern areas of the globe. On the other hand, those who get a nice deep tan can thank their subtropical ancestors. Full story

What sunscreen do you use on the beach? Well, get ready to toss it out because scientists are coming up with a revolutionary sun tan lotion. New generation of sunscreens will be based on hippo sweat. Full story