You could argue that even some of our solo organs are really two squished together. The brain has two hemispheres, for ...

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

You may hear a heartbeat in your pillow for a few reasons – most likely it's normal blood flow amplified by your head’s position. If you’re on your side with your ear against the pillow, and you have ...