population biology:
the study of biological populations of organisms, especially in terms of biodiversity, evolution, and environmental biology.
p-series fuel:
a unique blend of natural gas liquids, ethanol, and a biomass-derived co-solvent, typically clear, colorless, liquid blends that are formulated to be used in flexible fuel vehicles (FFV's).
Permian Mass Extinction:
10,000 year period of geologic history that is devoid of fossil records. Theoretically caused by methane plumes and general warming of ocean temperatures.