David Fleetham / Picasso triggerfish (Rhinecanthus aculeatus). Maui, Hawaii.

Graham Eaton / Picasso Triggerfish (Rhinecanthus aculeatus) in Red Sea, Egypt. July.

Jeff Rotman / Free diver observing Picasso / Lagoon triggerfish (Rhinecanthus aculeatus) on coral reef, Sinai, Egypt, Red Sea Model released Model released.

David Fleetham / Lagoon triggerfish / Picasso fish (Rhinecanthus aculeatus), Rarotonga, Cook Islands.

Joel Sartore / Photo Ark / Lagoon triggerfish (Rhinecanthus aculeatus) portrait, Pure Aquariums. Captive, occurs in Indo-Pacific.

Georgette Douwma / Tropical reef fish composite image on black background, Blue triggerfish (Pseudobalistes fuscus), Orangestripe triggerfish (Balistapus undulatus), Clown triggerfish (Balistoides conspicillum), Arabian...

Georgette Douwma / Triggerfish composite image on black background, Arabian picassofish (Rhinecanthus assasi), Orangestriped triggerfish (Balistapus undulatus), Titon triggerfish (Balistoides viridescens) with two juven...