Back Tamaño de los seres vivos Spanish کوچکترین جانداران زنده FA Organismes vivants les plus petits French Мельчайшие организмы Russian மிகச்சிறிய உயிரினங்கள் Tamil Найдрібніші організми Ukrainian
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The smallest organisms found on Earth can be determined according to various aspects of organism size, including volume, mass, height, length, or genome size.
Given the incomplete nature of scientific knowledge, it is possible that the smallest organism is undiscovered. Furthermore, there is some debate over the definition of life, and what entities qualify as organisms; consequently the smallest known organism (microorganism) is debatable.