We've mapped the surface of Mars in more detail than the bottom of our own oceans. Over 80% of the seafloor remains unexplored, and the creatures that live down there make science fiction look ...

Discover everything about 25 Most TERRIFYING Sea Creatures. Comprehensive guide with facts, insights, and expert analysis.

To this day, the oceans are still one of the most mysterious places on the planet. Because they cover a whopping 70% of the Earth's surface, scientists have only been able to map 27.3% of them so far.

Add Yahoo as a preferred source to see more of our stories on Google. Beachgoers in one Southern California town had to run for their lives after two massive sea lions came out of the ocean and onto ...