Surgeonfish © Bernd Nies

Surgeonfish: These fish are called surgeonfish because they have a sharp scalpel on both sides right before the backfin. They use it for defense. — Nikon D200, Nikkor AF-S DX 12-24mm, Little Brother Island, Red Sea, Egypt, 12 November 2011. Nikon D200, 1/125 s, F/5.6, 24 mm, ISO 200, Saturday, November 12, 2011 14:02:34