Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

Giant clam and vlaming's unicorn fish (Naso vlamingii), Sulawesi, Indonesia, Southeast Asia, Asia

Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

Bluespine unicorn fish (Naso unicornis) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

A school of unicorn fish hover over the Yolanda wreck, Red Sea, Egypt.

Unicorn fish (Naso hexacanthus). Borneo, Malaysia (RR)

Unicorn Fish. Cains, Queensland, Australia