The world’s largest mountain range lies underwater, stretching around the globe like the seam of a baseball. This mountain range, called the global mid-ocean ridge, is the source of more than 70 percent of Earth’s volcanism, hosts a myriad of bizarre underwater creatures, and contains towering cliffs larger than those in Yosemite or Ireland’s Moher. Yet, no one knew about these amazing features until the mid-1900’s. Read More→