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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