Queens University

A landmark study has found that a workable exercise plan significantly improves survival and health of people who have survived colorectal cancer. So much so that, as one researcher notes, "Our findings will change the way we treat colon cancer."

Perhaps fortunately, animal droppings generally don't stick around in the environment too long. But when they do, like in the case of this special Andean condor poop pile, these unique fossils offer new insights into the history of our planet.

If you watch any cop shows, then you know that a person's race and gender can be determined by doing a DNA analysis of one of their hairs. Now, however, scientists have developed a method of obtaining that same information from hair, that's quicker than DNA testing and is 100 percent accurate.