As a further explanation of what a conservation biologist does: they are interested in researching and learning about excessive rates of extinction and the erosion of biotic interactions. Essentially they are attempting to prolong and protect the lives of plants and animals that would be otherwise at risk due to an endless number of factors. They are trained to know how to draw from the natural and social sciences while practicing natural resource management in order to conserve various environmental domains. They are responsible for protecting the resources of our planet, like air, water, land, and wildlife, as well as sustaining the many ecological and environmental systems that occur here.