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  2. Nanobacterium - Wikipedia

    en.wikipedia.org/wiki/Nanobacterium

    Structures found on meteorite fragment Allan Hills 84001. Nanobacterium (/ ˌ n æ n oʊ b æ k ˈ t ɪər i əm / NAN-oh-bak-TEER-ee-əm, pl. nanobacteria / ˌ n æ n oʊ b æ k ˈ t ɪər i ə / NAN-oh-bak-TEER-ee-ə) is the unit or member name of a former proposed class of living organisms, specifically cell-walled microorganisms, now discredited, with a size much smaller than the generally ...

  3. Nanobe - Wikipedia

    en.wikipedia.org/wiki/Nanobe

    A nanobe (/ ˈ n æ n oʊ b, ˈ n eɪ n oʊ b /) [1] is a tiny filamental structure first found in some rocks and sediments.Some scientists hypothesize that nanobes are the smallest form of life, ⁠ 1 / 10 ⁠ the size of the smallest known bacteria.

  4. Smallest organisms - Wikipedia

    en.wikipedia.org/wiki/Smallest_organisms

    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.

  5. List of troglobites - Wikipedia

    en.wikipedia.org/wiki/List_of_troglobites

    A troglobite (or, formally, troglobiont) is an animal species, or population of a species, strictly bound to underground habitats, such as caves.These are separate from species that mainly live in above-ground habitats but are also able to live underground (eutroglophiles), and species that are only cave visitors (subtroglophiles and trogloxenes). [1]

  6. Bacteria - Wikipedia

    en.wikipedia.org/wiki/Bacteria

    The word "commensalism" is derived from the word "commensal", meaning "eating at the same table" [193] and all plants and animals are colonised by commensal bacteria. In humans and other animals, millions of them live on the skin, the airways, the gut and other orifices.

  7. Biogeography - Wikipedia

    en.wikipedia.org/wiki/Biogeography

    Additionally, this science considers the geographic constraints of landmass areas and isolation, as well as the available ecosystem energy supplies. [ citation needed ] Over periods of ecological changes, biogeography includes the study of plant and animal species in: their past and/or present living refugium habitat ; their interim living ...

  8. Microfauna - Wikipedia

    en.wikipedia.org/wiki/Microfauna

    Microfauna (from Ancient Greek mikros 'small' and from Latin fauna 'animal') are microscopic animals and organisms that exhibit animal-like qualities and have body sizes that are usually <0.1mm. [ 1 ] [ 2 ] Microfauna are represented in the animal kingdom (e.g. nematodes , small arthropods ) and the protist kingdom (i.e. protozoans ).

  9. Microbial mat - Wikipedia

    en.wikipedia.org/wiki/Microbial_mat

    A few are found as endosymbionts of animals. Although only a few centimetres thick at most, microbial mats create a wide range of internal chemical environments, and hence generally consist of layers of microorganisms that can feed on or at least tolerate the dominant chemicals at their level and which are usually of closely related species.

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