Editing List of biologists (section)

===Ma–Mc===

*[[Jules François Mabille]] (1831–1904), French malacologist<ref>Abbreviation in zoology: Mabile (not, apparently, Mabille — maybe an error</ref> who discovered and studied many mollusc species
*[[William MacGillivray]] (1796–1852), Scottish botanist<ref>Abbreviation in botany: W.MacGill.</ref> and ornithologist, author ''A Manual of British Ornithology''
*[[John Macleod (physiologist)|John Macleod]] (1876–1935), British biochemist awarded the Nobel Prize for the discovery of insulin
*[[Marcello Malpighi]] (1628–1694), Italian anatomist and biologist who described physiological features related to the excretory system
*[[Ramon Margalef]] (1919–2004), Spanish ecologist who applied information theory and mathematical models
*[[Emanuel Margoliash]] (1920–2008), Israeli-American biochemist whose work on cytochrome c sequences formed the starting point for studies of protein evolution
*[[Leo Margolis]] (1927–1997), Canadian parasitologist which showed that parasites could be used to identify fish stocks
*[[Lynn Margulis]] (1938–2011), American evolutionary theorist who proposed that organelles were "captured" bacteria
*[[Othniel Charles Marsh]] (1831–1899), American paleontologist who collected Mesozoic reptiles, Cretaceous birds, and Mesozoic and Tertiary mammals
*[[Barry Marshall]] (born 1951), Australian physician and microbiologist, awarded the 2005 Nobel Prize for elucidating the relationship between stomach ulcers and bacteria
*[[Bruce Marshall (taxonomist)|Bruce Marshall]] (born 1948), New Zealand malacologist who has named many species and genera
*[[Fermín Martín Piera]] (1954–2001), Spanish specialist in the systematics of Scarabaeoidea (beetles)
*[[Carl Friedrich Philipp von Martius]] (1794–1868), German botanist<ref>Abbreviation in botany: Mart.</ref> and explorer who collected many specimens
*[[John Martyn (botanist)|John Martyn]] (1699–1768), English botanist,<ref>Abbreviation in botany: J.Martyn</ref> author of ''Historia Plantarum Rariorum''
*[[Thomas Martyn]] (1735–1825), English priest and botanist,<ref>Abbreviation in botany: Martyn</ref> author of ''Plantæ Cantabrigiensis'' and ''Flora Rustica''
*[[John Marwick]] (1891–1978), New Zealand palaeontologist and geologist who studied and classified mollusc fossils
*[[Teresa Maryańska]] (1937–2019), Poland, [[paleontologist]]<ref>Abbreviation in zoology: Maryanska</ref> specializing in [[dinosaur]]s
*[[Ruth Mason]] (1913–1990), New Zealand botanist specialising in the taxonomy and ecology of freshwater plants
*[[Francis Masson]] (1741–1805), Scottish botanist<ref>Abbreviation in botany: Masson</ref> and explorer, author of ''Stapeliae Novae,'' about South African succulents 
*[[Gregory Mathews]] (1876–1949), Australian ornithologist<ref>Abbreviation in zoology: Mathews</ref> whose papers dealt especially with taxonomy and nomenclature
*[[Sara Branham Matthews]] (1888–1962), American microbiologist, listed under B (Branham).
*[[Paul Matschie]] (1861–1926), German zoologist who described 11 new species of reptiles
*[[William Diller Matthew]] (1871–1930), Canadian-American paleontologist who worked primarily on mammal fossils
*[[Humberto Maturana]] (1928–2021), Chilean philosopher and biologist known in particular for [[autopoiesis]]
*[[Polly Matzinger]] (born 1947), American immunologist known for  the idea that antigen-presenting cells respond to "danger signals" 
*[[Carl Maximowicz]] (1827–1891), Russian botanist<ref>Abbreviation in botany: Maxim.</ref> who studied flora of the Far East
*[[Harold Maxwell-Lefroy]] (1877–1925), English entomologist who investigated the use of chemicals to control insects
*[[Robert May, Baron May of Oxford|Robert May]] (1936–2020), Australian mathematician who advanced the field of population biology by application of mathematical techniques
*[[Ernst Mayr]] (1904–2005), ornithologist,<ref>Abbreviation in zoology: Mayr</ref> systematist, philosopher of biology; originator of modern definition of "species"
*[[Barbara McClintock]] (1902–1992), American biologist, winner of a Nobel Prize for her work on the transposon, or "jumping gene"
*[[James V. McConnell]] (1925–1990), American biological psychologist who studied learning and memory transfer in planarians
*[[Eileen McLaughlin]] (thesis 1993), New Zealand biologist who studies assisted reproduction
*[[Mark McMenamin]] (born 1958), American paleontologist who has studied the Cambrian explosion and the Ediacaran biota
*[[Bruce McEwen]] (1938–2020), American [[neuroendocrinologist]] and stress hormone expert