The Wondrous World of the Imperiled Coral Reefs

Ribbon Eel pops out of a hiding place in the Great Barrier Reef, Australia.
Gary Bell / zefa / Corbis

Arms Length
A Ribbon Eel pops out of a hiding place in the Great Barrier Reef, Australia.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.