Dwayne 'The Rock' Johnson, a wrestling and Hollywood star, champions kindness. He believes small acts can change a day. This ...

The Pacific lingcod is an ill-tempered, omnivorous fish with a mouth like a messy silverware drawer, its 500-plus teeth arranged haphazardly on two sets of highly mobile jaws. New research, published ...

You probably don't put much thought into brushing your teeth. If you use an electric toothbrush, you assume it's getting your teeth cleaner than a manual toothbrush. However, there are better ways to ...