Three types of symbiosis are explained: parasitism, commensalism, and mutualism. This is done with colorful animation and lively dialogue in a straightforward and easy-to-follow manner. Have your ecology class watch this at home and then...

Every species in the world has some type of relationship with another species, whether it be positive, negative, or neutral for each party. Mr. Andersen defines each type of relationship and provides clear examples under each category....