Editing List of biologists (section)

=== At–Az ===
*[[David Attenborough]] (born 1926), British natural history broadcaster
*[[Jean Baptiste Audebert]] (1759–1800), French naturalist.<ref>Abbreviations in zoology: Audebert, Audeb.</ref> Primarily an artist, he illustrated books of natural history, including ''Histoire naturelle des singes, des makis'' [lemurs] ''et des galéopithèques''
*[[Jean Victoire Audouin]] (1797–1841), French zoologist: entomologist, herpetologist, ornithologist and malacologist
*[[John James Audubon]] (1786–1851), French and American ornithologist<ref>Abbreviations in zoology: Audubon, Audub.</ref> and illustrator, who identified 25 new species
*[[Charlotte Auerbach]] (1899–1994), German and British geneticist, founded the discipline of mutagenesis after discovering the effect of mustard gas on fruit flies
*[[Caroline Austin]] (20th–21st century), British [[molecular biologist]] known for her work on human DNA [[topoisomerase]] enzymes
*[[Richard Axel]] (born 1946), American Nobel Prize–winning physiologist who discovered how to insert foreign DNA into a host cell
*[[Julius Axelrod]] (1912–2004), American biochemist, winner of the 1970 Nobel Prize in Physiology or Medicine for his research on catecholamine neurotransmitters
*[[Francisco J. Ayala|Francisco Ayala]] (1934–2023), Spanish-American evolutionary biologist and philosopher
*[[William Orville Ayres]] (1817–1887), American physician and ichthyologist with publications in popular sources
*[[Félix de Azara]] (1746–1811), Spanish naturalist<ref>Abbreviation in zoology: Azara, Az.</ref> who described more than 350 South American birds