Grant Johnson recently uploaded this video, documenting the tagging of a large female bull shark (Carcharhinus leucas), to his YouTube channel. The shark, which was tagged off of Bimini, was measured at 2.65m in length and was safely released unharmed after being measured and tagged, according to the video description.

It should go without saying that Johnson and the team involved in this tagging effort have a great deal of experience in field research involving sharks, so kids, don’t try this at home (or on your boat).