Editing List of biologists (section)

===Mo-Mu===
*[[Hugo von Mohl]] (1805–1872), German botanist<ref>Abbreviation in botany: Mohl</ref> who first observed cell division under a microscope
*[[Paul Möhring]] (1710–1792), German naturalist who pioneered the classification of bird species
*[[Juan Ignacio Molina]] (1740–1829), Chilean naturalist,<ref>Abbreviation in zoology and in botany: Molina</ref> an early proponent of gradual evolution
*[[Brian Molloy (botanist)|Brian Molloy]] (1930–2022),<ref>Abbreviation in botany: Molloy</ref> New Zealand botanist, a leading authority on New Zealand orchids
*[[Pérrine Moncrieff]] (1893–1979), New Zealand ornithologist, author of ''New Zealand birds and how to identify them''
*[[Jacques Monod]] (1910–1976), French geneticist and biochemist, awarded the Nobel Prize for discoveries concerning genetic control of enzyme and virus synthesis
*[[George Montagu (naturalist)|George Montagu]] (1753–1815), English naturalist, author of ''Ornithological Dictionary''
*[[Luc Montagnier]] (1932–2022), French virologist, awarded the Nobel Prize for the discovery of [[HIV]]
*[[Rita Levi-Montalcini]] (1909–2012), Italian-American neurologist awarded Nobel Prize for her co-discovery of growth factors
*[[Tommaso di Maria Allery Monterosato]] (1841–1927), Italian malacologist who studied the fossil deposits of Mount Pellegrino
*[[Pierre Dénys de Montfort]] (1766–1820), French naturalist who investigated the existence of gigantic octopuses
*[[George Thomas Moore]] (1871–1956), American botanist<ref>Abbreviation in botany: G.Moore</ref> who worked on plant pathology
*[[Marianne V. Moore]] (active 1978–2017), American marine biologist
*[[Alfred Moquin-Tandon]] (1804–1863), French naturalist,<ref>Abbreviation in botany: Moq.</ref> author of ''L'Histoire Naturelle des Iles Canaries''
*[[Otto Andreas Lowson Mörch]] (1828–1878), Swedish malacologist who described various taxa of molluscs
*[[Thomas Hunt Morgan]] (1868–1945), American geneticist who worked on mutations in the fruit fly ''Drosophila''
*[[Mary Morgan-Richards]] (thesis 1985), New Zealand evolutionary biologist whose research focusses on topics such as speciation and hybridisation
*[[Harold J. Morowitz]] (1927–2016), American biophysicist who studied the application of thermodynamics to living systems, including the origin of life 
*[[Desmond Morris]] (born 1928), British zoologist and biologist, author of ''The Naked Ape''
*[[Roger Morse]] (1927–2000), American entomologist, expert on bees and beekeeping
*[[Guy Mountfort]] (1905–2003), English ornithologist and conservationist, author of ''A Field Guide to the Birds of Britain and Europe''
*[[Ladislav Mucina]] (born 1956), Slovak botanist who works on plant ecology and biogeography
*[[Ferdinand von Mueller]] (1825–1896), German-Australian physician, geographer, and botanist<ref>Abbreviation in botany: F.Muell.</ref> who collected and studied many Australian plants
*[[John Muir]] (1838–1914), Scottish-American naturalist<ref>Abbreviation in botany: J.Muir</ref> and conservationist who co-founded the Sierra Club 
*[[Otto Friedrich Müller]] (1730–1784), Danish naturalist<ref>Abbreviation in botany: O.F.Müll.</ref> who studied worms and other invertebrates
*[[Fritz Müller]] (1821–1897), German-Brazilian naturalist<ref>Abbreviation in botany: F.J.Müll.</ref> who studied the natural history of the Atlantic forest south of São Paulo
*[[Hermann Müller (Thurgau)]] (1850–1927), Swiss botanist<ref>Abbreviation in botany: Müll.-Thurg.</ref> and oenologist who published on topics in viticulture and winemaking
*[[Philipp Ludwig Statius Müller]] (1725–1776), German zoologist who classified the dugong, guanaco, potto and other species
*[[Salomon Muller]] (1804–1864), Dutch naturalist and explorer who collected specimens in the Dutch East Indies
*[[Kary Mullis]] (1944–2019), American biochemist, awarded Nobel Prize after inventing the polymerase chain reaction 
*[[Otto von Münchhausen]] (1716–1774), German botanist<ref>Abbreviation in botany: Münchh.</ref> who studied oaks in particular
*[[John Murray (oceanographer)|John Murray]] (1841–1914), Scottish-Canadian marine biologist and oceanographer who collected marine species