greenland sharks are one of the biggest mysteries in the ocean. scientists believe some of them can live for over 500 years, making them the longest-living vertebrates ever discovered. that means a shark swimming today could have been alive before the first pilgrims sailed to america. one reason they live so long is their incredibly slow lifestyle. they swim through the freezing waters of the arctic at a relaxed pace, have an extremely slow metabolism, and only grow by around a centimetre each y

1.75 cm Height Difference Between Besties