THE GALAPAGOS ENVIRONMENT
'(<a href="http://www.j-archive.com/media/2011-04-07_J_27.wmv">Kelly of the Clue Crew gives the clue from Galapagos in Ecuador.</a>) As Darwin's finches remove parasites from the tortoises, two of the best-known creatures of the Galapagos display this mutually helpful arrangement, from the Greek for "living together"'
symbiosis