Colin Sutton and Cameron Dietrich were diving off the coast of Mexico when they found a sea turtle tangled up in the rope attached to a buoy. Though the impressive turtle is nearly as large as the divers, he was unable to free himself and the two men spent quite some time removing the rope from his fin, allowing him to swim away without a scratch.
But before he swam out of sight, the creatures turned around and surprised his rescuer with a sweet show of gratitude. Watch the video and see for yourself — who knew turtles could say “thank you”?