This is a list of large extant primate species that can be ordered by average weight or height range. There is no fixed definition of a large primate, so the length of the list is somewhat arbitrary. Primates exhibit the highest levels of sexual dimorphism amongst mammals, with males generally being larger than females within the given size ranges. The size ranges describe typical values and may not include the full extremes among all observed specimens.
Mandrills and baboons are monkeys; the rest of the species on this list are apes. Typically, Old World monkeys (paleotropical) are larger than New World monkeys (neotropical); the reasons for this are not entirely understood but several hypotheses have been generated. As a rule, primate brains are "significantly larger" than those of other mammals with similar body sizes.
↑Size Influences on PrimateLocomotion and BodyShape, with SpecialEmphasis on theLocomotion of 'SmallMammals' In: Folia Primatologica Authors: H. Preuschoft, H. Witte, A. Christian, M. Fischer Date: 14 February 1996
↑Cristoffer, Cris (1987). "Body Size Differences Between New World and Old World, Arboreal, Tropical Vertebrates: Cause and Consequences". Journal of Biogeography. 14 (2): 165–172. doi:10.2307/2845070. ISSN0305-0270. JSTOR2845070.
123Lindsley, Tracy; Sorin, Anna Bess. "Gorilla beringei (eastern gorilla)". Animal Diversity Web. Retrieved 22 January 2023. Gorillas are the largest primate, with average lengths of 150 cm for females and 185 cm for males.
12Csomos, Rebecca Ann. "Gorilla gorilla (western gorilla)". Animal Diversity Web. Retrieved 22 January 2023. Male gorillas have stocky bodies standing usually 1.75 meters in height with bent knees. On average, females are only 1.25 meters tall. This marked sexual dimorphism is critical in group structure and mating.
↑Wilson, Don E.; Reeder, DeeAnn M. (2005). Mammal species of the world: a taxonomic and geographic reference. Baltimore: Johns Hopkins University Press. ISBN0-8018-8221-4. OCLC57557352.
12Schlessingerman A (2003). "Mass Of An Adult". The Physics Factbook: An Encyclopedia of Scientific Essays. Archived from the original on 1 January 2018. Retrieved 31 December 2017.
123"Tapanuli Orangutan, Pongo tapanuliensis". New England Primate Conservancy. 30 October 2021. Retrieved 22 January 2023. The average female measures a little under four feet (1.21 m) and weighs 82 pounds (37 kg). Males have two stages of maturity. A fully developed male is significantly larger, measuring just under five feet (1.53 m) and weighing twice the average female at 165 pounds (75 kg).
Campbell, Christina J.; Fuentes, Agustin; MacKinnon, Katherine (2011). Primates in perspective (2nded.). New York: Oxford University Press. ISBN978-0-19-539043-8. OCLC598304952.
Wilson, Don E.; Mittermeier, Russell A.; Cavallini, Paolo, eds. (2009). Handbook of the mammals of the world. Vol.3: Primates. Barcelona. ISBN978-84-96553-49-1. OCLC304148757.{{cite book}}: CS1 maint: location missing publisher (link)
Tillquist, Richard C.; Shoemaker, Lauren G.; Knight, Kevin Bracy; Clauset, Aaron (11 December 2016). "The Evolution of Primate Body Size: Left-skewness, Maximum Size, and Cope's Rule". bioRxiv10.1101/092866.