野生珊瑚礁捕食者：巨型炮弹鱼张开嘴露出锋利的牙齿

triggerfish (Balistoides viridescens) rests low on the reef with its mouth held open, giving a rare view of the teeth behind its coral predation and reef bioerosion behaviour. Despite appearing poised to strike, the fish stays relaxed while tropical wrasse species move freely around it. This open mouthed posture offers an unusually detailed look at the dental structure driving the species' role as a reef engineer. 4K, wide angle, horizontal close up, front and side view, scuba diver POV. Andaman Sea, Krabi Province, Thailand.