Classic Why dont you hit em with a subject called Conservation Biology. This was a core subject in my Diploma in natural resource mangemement, in laymans terms its the study of the interaction of Inaminate objects(Rocks=Geology) and living objects(Plant and animal). It also covers the interactions between animals
(Predator and Prey, Symbiotic relationships etc). Also it alks about Humans interaction with these different cycles and how those cycles can be altered with intervention etc. It also emphasises the importance of controlling pest animals for the conservation of native animals. The controll of weed species for the conservation and viability of native plants(Flora). Basicly terms the interaction of floran and fana too. knowing what a bear, deer or some other native animal eats is learn about interation in nature.
I hope this would help.
