Whitetip Reef Shark resting in Cave, Triaenodon obesus, Roca Partida, Revillagigedo Islands, Mexico

whitetip reef shark whitetip reef shark whitetip shark whitetip reef shark sharks chondrichthyes carcharhiniformes carcharhinidae requiem shark grey sharks elasmobranchii predator predatory fish sleep sleeping sleeps bahavior rest resting lying shoal school group north america pacific ocean baja california sur socorro roca partida san benedicto geography nature sea ocean sealife marine wildlife marine fauna underwater underwaterphoto underwaterpicture underwaterphotography underwaterworld whitetip reef shark resting in cave triaenodon obesus roca partida revillagigedo islands mexico horizontal mr:y pr:y rm