Producers, Consumers, Decomposers http://www.ftexploring.com/me/me2.html
Energy Pyramids and Food Chains http://www.ftexploring.com/me/pyramid.html
Fitting Algae into the Food Web http://www.bigelow.org/edhab/fitting_algae.html
Why is firefly courtship dangerous? http://www.killerplants.com/renfields-garden/20030416.asp
Pre-Programmed & Learned Behavior in Birds http://www.backyardnature.net/birdlern.htm
Imprinting in Birds http://www.backyardnature.net/birdprnt.htm
Migrating Birds http://www.backyardnature.net/birdmgrt.htm
Learning Who Is Your Mother? Imprinting http://www.cerebromente.org.br/n14/experimento/lorenz/index-lorenz.html