Bottlenose dolphin asks diver for help to remove a fishing hook and line

From back in 2013, via Neatorama

Keller Laros was diving off the coast of Kona, Hawaii on January 11, 2013. A bottlenose dolphin swam up to him and hovered. Laros could spot the problem immediately: there was fishing hook and line stuck in his left side. With scissors and a pliers, he carefully untangled and removed them.