Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs / surgeonfish (Zebrasoma flavescens), Puako, Kona, Hawaii, USA, June, Endangered species

Doug Perrine / Green sea turtle (Chelonia mydas) cleaned of algae by Yellow tangs / surgeonfish (Zebrasoma flavescens), Puako, Kona, Hawaii, USA, June, Endangered species

Kirkendall-Spring / Puako Petroglyphs near the Holoholokai Beach Park on the South Kohala area of the Big Island. The Big Island of Hawaii, USA, December 2008

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned by yellow tangs (Zebrasoma flavescens) at a cleaning station where the turtles are groomed by the fish in a mutualistic, symbiotic relationship, Puako,...

Jeff Vanuga / Petroglyphs at the Puako Petrogloyph Archaeological Preserve. Pu ukohjola Heiau National Historic Site, Hawaii, March 2012.

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs / surgeonfish (Zebrasoma flavescens), Puako, Kona, Hawaii, USA, June, Endangered species

Doug Perrine / Yellow tangs (Zebrasoma flavescens) and Whitebar surgeonfish (Acanthurus leucopareius) swimming over coral reef, Puako, Kona, Hawaii, Central Pacific Ocean

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens), Chevron tangs (Ctenochaetus hawaiiensis), Black durgon triggerfish (Melichthys niger) and Parrotfish (S...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens), Goldring surgeonfish (Ctenochaetus strigosus) and Blueline surgeonfish (Acanthurus nigroris) as it swim...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens) and Goldring surgeonfish (Ctenochaetus strigosus) as it swims midwater, Puako, South Kohala, Hawaii, USA...

Doug Perrine / Green sea turtle (Chelonia mydas) opens mouth while being cleaned of algae by Yellow tangs (Zebrasoma flavescens), Goldring surgeonfish (Ctenochaetus strigosus) and Blueline surgeonfish (Acanthurus ni...

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs (Zebrasoma flavescens) and Goldring surgeonfish (Ctenochaetus strigosus) as it swims, Puako, South Kohala, Hawaii, USA, Pacific...