Humans, meet 'Your Inner Fish' on PBS science show
Neil Shubin would like to introduce you to your family tree, the one with roots reaching back more than 3 billion years.
An answer to the perennial question: Is it safe to pee in the pool?
Sanitary-minded pool-goers who preach "no peeing in the pool," despite ordinary and Olympic swimmers admitting to the practice, now have scientific evidence to back up their concern. Researchers are reporting ...