richness, diversity, composition, comparisons, comparison, number, selection, populations, xiv, variation, box, typica, distribution, specificity, list, reduction, description, name, extinction, concept, differentiation, models, recognition, extrapolations, living, equilibrium, change, counterpoint, author, identification, tests, xxv, abundance, sanitation, extrapolation

other, different, many, several, new, same, various, human, certain, most, few, single, common, particular, distinct, native, rare, reactive, wild, numerous, dominant, mammalian, molecular, bacterial, larger, smaller, separate, related, exotic, latter, marine, extinct, allied, european, endemic, tropical, sub, abundant, aquatic, fossil, north, indigenous, biological, largest, ionic, invasive, migratory, valuable, alien, peculiar, terrestrial, australian, woody, tolerant, type, vertebrate, characteristic, known, freshwater, sensitive, pathogenic, primate, avian, widespread