Add Yahoo as a preferred source to see more of our stories on Google. The sunlight coming in from the above makes it look almost like a portrait. Octopus swimming gracefully underwater in a clear blue ...

This video shows a vibrant coral reef filled with small colorful fish swimming freely in clear blue water. The natural movement and variety of marine life create a calm and visually rich underwater ...

When marine biologist Eleanor Caves of the University of Exeter thinks back to her first scuba dives, one of the first things she recalls noticing is that colors seem off underwater. The vivid reds, ...

The world's oceans are home to far more than colorful coral reefs and exotic marine life. Beneath the waves, several ...