Watson, B., 2000. You gotta remember, eels are weird. Smithsonian, vol. 30, no. 11, February, pp. 124-133. The Atlantic eel follows a long and perilous migratory route from the Sargasso Sea to North Atlantic rivers.
http://www.smithsonianmag.si.edu/smithsonian/issues00/feb00/eels.html
