Close up of a Whitetip reef shark lying on a coral reef moving mouth and gills in order to breath

whitetip reef shark triaenodon obesus shark sharks reef shark shark underwater shark dive shark diving close up tropical diving southern leyte asia tropical water saltwater fish tropical sea ocean carcharhiniformes elasmobranchii philippines coral coral reef corals coral sea indopacific palau palau islands scuba dive scuba diving vulnerable endagered endangered species