Additional Data:

Nunn, C.L. (2002). Spleen size, disease risk and sexual selection: A comparative study in primates. Evolutionary Ecology Research 4: 91-107

Species Spleen (grams) Body Mass (grams) Alternative Spleen Mass? Reference for Spleen Mass and Corresponding Body Mass Group Size (number of individuals in foraging and larger social units) Population Density (individuals / km2) Percentage of Time Terrestrial Percentage Leaves in Diet Percentage of Fruit in Diet
Alouatta caraya 9.24 4983   Stahl et al. 1968 7.3 159   76 24
Alouatta palliata 45.68 6174   Crile & Quiring 1940 13.5 32.6   56 43
Aotus trivirgatus 1.94 739   Baer 1994 3.4 29.7   10 75
Ateles geoffroyi 40.8 7630   Crile & Quiring 1940 52.3 14.4 0 13 85
Callithrix jacchus 0.423 307.72   Wadsworth et al. 1981 8.2 940   0 33
Cebus apella 2.37 2160   Schwartz et al. 1974 15.1 22.9   10 65
Cebus capucinus 11.3 3101   Crile & Quiring 1940 16.6 10.7   10 62
Cercocebus galeritus 5.35 6000   Kennard & Willner 1941c 18.7 120   14 78
Cercocebus torquatus 9 6100   Kennard & Willner 1941c 23.2 52.2 70 13 83
Cercopithecus aethiops 3 1422 yes Sauer and Fegley 1960 25.3 66.4 45 20 59
Cercopithecus mitis 85.16 4937   Crile & Quiring 1940 16.9 108 0 20 52
Galago garnettii 2.17 800   Makita et al. 1989 3 34.5 0 0 50
Gorilla gorilla 192.8 65000   Kennard & Willner 1941a 15.8 1 95 93 1
Homo sapiens 168 56000 yes Spector 1956 148   100    
Hylobates lar 14 5700   Kennard & Wellner 1941a 3.8 8.3 0 30 59
Macaca arctoides 9.77 6200 yes Larson 1982 27.5        
Macaca cyclopis 8 10300   Makita et al. 1984 12.8        
Macaca fascicularis 7.19 3300 yes Larson 1982 25.5 58.5 5 10 73
Macaca fuscata 4.5675 5825   Makita et al. 1984, 1985 55.4 31.5   78 22
Macaca mulatta 4.31 5210 yes Larson 1982 42.1 113   87 12
Macaca nemestrina 10.13 5150   Larson 1982 40.2 34.8 25 14 77
Macaca radiata 7.65 4530   Larson 1982 25.5 35 30    
Pan troglodytes 95 30100   Kennard & Willner 1941a 49.2 3.5 50 26 66
Papio anubis 16.9 12700 yes Gest & Siegel 1983 58.6 15 80 35 62
Papio cynocephalus 17.79 12970 yes Larson 1982 62.5 20.8 90 21 61
Papio ursinus 18.4 14500   McConnell et al. 1974 51.2 8.3   12 87
Saguinus oedipus 1.65 793   Crile & Quiring 1940 5.3 35.8   5 44
Saimiri oerstedii 0.9 607   Crile & Quiring 1940 30.2 83   0 80
Saimiri sciureus 0.95 662 yes Middleton & Rosal 1972 43.1 86.7   0 28
Tarsius spectrum 0.031 168   Kennard & Willner 1941c 3 550   0 0

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