Butterfly Lessons

"Ultimately, all of the crops we grow are biological species; all the diseases we have are biological species; all the disease vectors are biological species." Chris Thomas' remark points out that most of the things we depend on and know are biological in essence and as such they are sensitive to environmental change as other biological systems are. Humans ourselves are biological species. Butterflies and toads aren't the only animals sensitive to environmental change. Changes to their behavior is just more easily seen because they're more sensitive to smaller changes in temperature and other environmental changes.