Everything about the Greenland shark seems to be slow: these long-bodied animals swim slowly, grow slowly and reach maturity slowly. Their maturity rate is so sluggish, in fact, that scientists believe they don’t start reproducing until they’re about 150 years old — and that they can live anywhere from 270 to 500 years, making them … Continue reading Greenland shark, world’s longest-living vertebrate, gets long-awaited protection