Portrait of a Triggerfish

This triggerfish may be the undersea equivalent of a butterface, but it charmed photographer and Pitcairn Islands Expedition leader Enric Sala. If you look closely, you'll see a much smaller fish removing parasites from the triggerfish's face, below the eye. Read more about this nature encounter at National Geographic News. Link -Thanks, Marilyn!

(Image credit: Enric Sala)