Glossary / Lexicon

- Thomas Malthus (1766 - 1834) : Thomas Malthus refers to the Eonomist who wrote Essay on the Principle of Population (1798), which provided Darwin with the principle he needed to explain the observations that he had made while aboard the Beagle. The principle stated that because more individuals are born than environmental resources can support, there is a struggle for survival and only the fittest survive.