A biologist from the Florida Keys National Marine Sanctuary uses a glue gun to reattach a piece of living coral broken lose when a boat went aground on the shallow coral reef.
To learn more about coral reefs and marine sanctuaries, visit:
NOAA Coral Reef Conservation Program
Office of National Marine Sanctuaries
Corals Tutorial, (National Ocean Service Education)
What is a National Marine Sanctuary?, (Diving Deeper audio podcast)
Coral Reef Conservation
(Original source: National Ocean Service Image Gallery)