Well this experience was certainly one to remember; while snorkeling at the ocean surface near a reef I looked down to see a school of hundreds of mobula rays! These animals are commonly called "Devil rays" due to the distinctive horn-like cephalic fins on their head. While nearly every other species of mobula rays lacks a usable tail stinger, I believe these are Mobula mobular (the only mobula species with a free stinger), and I made sure to keep a respectful distance as I observed their flight. These rays are at great risk of fishery bycatch, and their populations are slow to recover as they only produce one pup every 1-3 years. They have been listed as endangered since 2006.