You don't have to travel far to see some of the world's most stunning natural wonders. From shimmering turquoise lakes to ...

Underwater video footage captured by divers and remotely operated vehicles shows a type of small predatory fish—called blue ...

I could snorkel from shore, or kayak out to a sandbar and snorkel at the reef there. I met turtles, nurse sharks, barracuda ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...