By Crystal Gammon
When you think of coral reefs, you probably picture scuba divers gliding through warm, crystal-clear waters. And for the most part, you’d be right: more than 90 percent of the world’s coral reefs are located in the tropics.
Now researchers in Japan have found what is — so far — the world’s northernmost coral reef. Located off the coast of Tsushima Island at 34 degrees north latitude, the newly discovered reef is far different from other coral reefs and is 217 miles (350 kilometers) north of most others in the region.