http://www.organicgardening.com/learn-and-grow/nematodes, https://www.google.com/webhp?source=search_app&safe=active&ssui=on#q=what+is+a+nematode&safe=active http://wiki.answers.com/Q/What_do_nematodes_eat&isLookUp=1#Q=what%20do%20nematodes%20eat
http://nematode.unl.edu/wormgen.htm
http://animaldiversity.ummz.umich.edu/accounts/Nematoda/
http://nematode.unl.edu/wormgen.htm
http://animaldiversity.ummz.umich.edu/accounts/Nematoda/