16 reactions | Meet the queen triggerfish in Great Maya Reef! The name triggerfish comes from their ability to lock its dorsal fin. When upright, the dorsal-fin spine is locked in place by its second spine. The first spine can only be lowered after the second is pulled back, like a trigger! | Audubon Aquarium | Facebook

50K views · 3.4K reactions | The Clown triggerfish. The Clown triggerfish has got to be one of my favourite fish on the reef and is always incredibly relaxed. These little fish have trigger-like spines on the tops of their bodies that will pop when threatened, but they use it more like an anchor than anything else, locking them into small spaces to stop predators from getting to them. Post by Master Reef Guide Abby Marine Discoveries, Cairns | Master Reef Guides | Facebook