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Salazar L, Burger R, Forst J, Barquera R, Nesbitt J, Calero J, Washburn E, Verano J, Zhu K, Sop K, Kassadjikova K, Ibarra B, Bradley BJ, Krause K, Fehren-Schmitz L (2023) Insights into the genetic histories and lifeways of Machu Picchu’s occupants, Science Advances.

Hopkins WD, Staes N, Guevara EE, Mulholland MM, Sherwood CC, Bradley BJ. (2023) Vasopressin, and not oxytocin, receptor gene methylation is associated with individual differences in receptive joint attention in chimpanzees (Pan troglodytes). Autism Research.

Gumber S, Connor-Stroud F, Howard D, Zhang X, Bradley BJ, Sherwood CC, Walker LC. (2023) Polyglucosan body disease in aged chimpanzee (Pan troglodytes). Neuropathology,

Tapanes E, Kamilar JM, Nukala MA, Irwin MT, Bradley BJ. (2022) Melanism in a wild sifaka population: Darker where cold and fragmented. International Journal of Primatology.

Städele V, Arandjelovic M, Nixon S, Bergl RA, Bradley BJ, Breuer T, Cameron KN, Guschanski K, Head J, Kyungu JC, Masi S. (2022) The complex Y‐chromosomal history of gorillas. American Journal of Primatology. 

Tapanes E, Jacobs RL, Harryman I, Louis Jr EE, Irwin MT, Kamilar JM, Bradley BJ. (2022) Hair phenotype diversity across Indriidae lemurs. American Journal of Biological Anthropology. 

Staes N, White CM, Guevara EE, Eens M, Hopkins WD, Schapiro SJ, Stevens JM, Sherwood CC, Bradley BJ. (2022) Chimpanzee Extraversion scores vary with epigenetic modification of dopamine receptor gene D2 (DRD2) and early rearing conditions. Epigenetics. 

Guevara EE, Hopkins WD, Hof PR, Ely JJ, Bradley BJ, Sherwood CC (2022). Epigenetic aging of the prefrontal cortex and cerebellum in humans and chimpanzees. Epigenetics.

Kitrinos C, Bell RB, Bradley BJ, Kamilar JM. (2022) Hair microbiome diversity within and across primate species.mSystems (American Society for Microbiology).

Bell RB, Bradley BJ, Kamilar JM. (2021) The evolutionary ecology of primate hair coloration: A phylogenetic approach. Journal of Mammalian Evolution.

Guevara EE, Hopkins WD, Hof PR, Ely JJ, Bradley BJ, Sherwood CC. (2021) Comparative analysis reveals distinctive epigenetic features of the human cerebellum. PLoS Genetics.

Guevara EE, Webster TH, Lawler RR, Bradley BJ, Greene LK, Ranaivonasy J, Ratsirarson J, Harris RA, Liu Y, Murali S, Raveendran M. (2021) Comparative genomic analysis of sifakas (Propithecus) reveals selection for folivory and high heterozygosity despite endangered status. Science Advances.

Guevara EE, Greene LK, Blanco MB, Farmer C, Ranaivonasy J, Ratsirarson J, Mahefarisoa KL, Rajaonarivelo T, Rakotondrainibe HH, Junge RE, Williams CV, Bradley BJ, Yoder AD. (2021). Molecular adaptation to folivory and the conservation implications for Madagascar’s lemurs. Frontiers in Ecology and Evolution. 

Bennett AJ, Pierre PJ, Wesley MJ, Latzman R, Schapiro SJ, Mareno MC, Bradley BJ, Sherwood CC, Mullholland MM, Hopkins WD. (2021) Predicting their past: Machine language learning can discriminate the brains of chimpanzees with different early‐life social rearing experiences. Developmental Science. 

Tapanes E, Kamilar JM, Bradley BJ. (2021) Molecular and Cellular Processes of Pelage Growth and Pigmentation in Primate Evolution. In: Evolutionary Cell Processes in Primates CRC Press.

Guevara EE, Lawler RR, Staes N, White CM, Sherwood CC, Ely JJ, Hopkins WD, Bradley BJ. (2020) Age-associated epigenetic change in chimpanzees and humans. Philosophical Transactions of the Royal Society B. 

Tapanes E, Kamilar JM,  Anestis S, Bradley BJ. (2020) Does facial hair greying in

chimpanzees provide a salient progressive cue of aging? PLoS One

Guevara EE, Lawler RR, Staes N, White CM, Sherwood CC, Ely JJ, Hopkins WD, Bradley BJ. (2020) Age-associated epigenetic change in chimpanzees and humans. Philosophical Transactions of the Royal Society B.

Baden AL, Webster TH, Bradley BJ. (2020) Genetic relatedness cannot explain social bonds in black-and-white ruffed lemurs (Varecia variegata). Animal Behavior  

Baden AL, Mancini AN, Federman S, Holmes SM, Johnson SE, Kamilar J, Louis EE, Bradley BJ (2019) Anthropogenic pressures drive population genetic structuring across a Critically Endangered lemur species range. Scientific Reports. 

Singh SV, Staes N, Guevara EE, Schapiro SJ, Ely JJ, Hopkins WD, Sherwood CC, Bradley BJ (2019)  Evolution of ASPM coding variation in apes and associations with brain structure in chimpanzees. Genes, Brain and Behavior.

Staes N, Sherwood CC, Freeman H, Brosnan SF, Schapiro SJ, Hopkins WD, Bradley BJ (2019) Serotonin receptor 1A (HTR1A) variation is associated with anxiety and agonistic behavior in captive chimpanzees. Molecular Biology and Evolution.


Webster TH,  Guevara EE, Lawler RR,  Bradley BJ (in revision; preprint online 2019) Successful exome capture and sequencing in lemurs using human baits. American Journal Physical Anthropology.

Jacobs RL, Veilleux CC, Louis EE, Herrera JP, Hiramatsu C, Frankel DC, Irwin MT, Melin AD, Bradley BJ (2019) Less is more: lemurs (Eulemur spp.) may benefit from loss of trichromatic vision. Behavioral Ecology and Sociobiology. 73:22.

Sherwood CC, Bradley BJ (2019) Brain Evolution: Mapping the Inner Neandertal. Current Biology. 29:R95-7.

Staes N, Smaers JB , Kunkle AE, Hopkins, W.D , Bradley BJ, Sherwood CC (2018) Evolutionary divergence of neuroanatomical organization and related genes in chimpanzees and bonobos. Cortex

Jacobs RL, Frankel D, Bradley BJ. (2018) Parentage complexity in socially monogamous lemurs (Eulemur rubriventer): Integrating genetic and observational data. American Journal of Primatology.  2018;e22738.


Staes N, Sherwood CC , Wright, K, de Manuel M, Guevara EE, Marques-Bonet T, Krutzen M, Massiah M, Hopkins, W.D , Ely JJ , Bradley BJ (2017) FOXP2  variation in great ape populations offers insight into the evolution of communication skills. Scientific Reports


Staes N, Bradley BB, Hopkins WD, Sherwood CC (2017) Genetic signatures of sociocommunicative abilities in primates. In: The Evolution of Language . C. Petkov, W. Marslen-Wilson (eds.) Current Opinion in Behavioral Sciences.

Guevara EE, Ranaivonasy J, Richard AF, Ratsirarson J, Lawler RR, Bradley BJ. (2017) A simple, economical protocol for DNA extraction and amplification where there is no lab. Molecular Ecology Resources.

Jacobs RL, MacFie TS, Spriggs AN, Morelli TL, Lawler RL, Irwin MT, Mayor M, Kappeler PM, Wright PC, Louis EE, Baden AL, Mundy NI, Bradley BJ. (2017) Novel and highly polymorphic colour vision in large-bodied, diurnal lemurs. Biology Letters. 

Bradley BJ, Snowdon CT, McGrew WC, Lawler RR, McIntosh A, O’Connor T. (2016) Non-human primates avoid the detrimental effects of prenatal androgen exposure in mixed-sex litters: Combined demographic, behavioral, and genetic analyses. American Journal of Primatology

Guevara EE, Veilleux CC, Saltonstall K, Caccone A, Mundy NI, Bradley BJ. (2016) Arms race in the coevolution of primates and angiosperms: Brazzein sweet proteins and gorilla taste receptors. American Journal of Physical Anthropology.

Jacobs RL, Baden AL, Spriggs A, MacFie TS, Baden AL, Irwin MT, Wright PC, Louis Jr. EE, Lawler RR, Mundy NI, Bradley BJ. (2016) Primate genotyping via High Resolution Melt Analysis (HRMA): rapid and reliable identification of color vision status in wild lemurs. Primates. 


Jacobs RL, Bradley BJ. (2016)  Considering the influence of nonadaptive evolution on primate color vision.  PLoS One. 2016 Mar 9;11(3):e0149664.


Mundy NI, Morningstar NC, Baden AL, Fernandez-Duque E, Dávalos VM, Bradley BJ.  (2016) Can colour vision re-evolve? Variation in the X-linked opsin locus of cathemeral Azara’s owl monkeys (Aotus azarae azarae). Frontiers in Zoology.


Vigilant L, Roy J, Bradley BJ, Stoneking CJ, Robbins MM, Stoinski TS. (2015) Reproductive competition and inbreeding avoidance in a primate species with habitual female dispersal. Behavioral Ecology & Sociobiology. 


Roy J, Arandjelovic M, Bradley BJ, Guschanski K, Stephens CR, Bucknell D, Vigilant, L. (2014) Recent divergences and size decreases of eastern gorilla populations. Biology Letters, 10: 20140811.


Baden AL, Holmes SM, Johnson SE, Louis EE, Bradley BJ. (2014) Species-level view of population structure and gene flow for a critically endangered primate (Varecia variegata). Ecology & Evolution.  4(13): 2675–2692.


Fünfstück T, Arandjelovic M, Morgan D, Sanz C, Breuer T, Stokes EJ, Reed P, Olson SH, Cameron K, Ondzie A, Peeters M, Kühl HS, Cipolletta C, Todd A, Masi S, Doran-Sheehy DM, Bradley BJ, Vigilant L. (2014) The genetic population structure of wild western lowland gorillas (Gorilla gorilla gorilla) living in continuous rain forest. American Journal of Primatology. 9:868-878.


Anestis SF, Webster TH, Kamilar JM, Fontenot MB, Watts DP, Fontenot MB, Bradley BJ. (2014). AVPR1A variation in chimpanzees (Pan troglodytes): Population differences and association with behavioral style.  International Journal of Primatology. DOI


Baden AL, Wright PW, Louis EE, Bradley BJ. (2013) Communal nesting, kinship and maternal success in a social primate. Beahvioral Ecology and Sociobiology.  DOI


Kamilar JM, Heesy CP, Bradley BJ. (2013) Did trichromatic color vision and red hair color co-evolve in primates? American Journal Primatology. DOI


McIntosh A, Bennett C, Dickson D, Anestis SF, Watts DP, Webster TH, Fontenot MB, Bradley BJ. (2012) The apolipoprotein E (APOE) gene appears functionally monomorphic in chimpanzees (Pan troglodytes). PLoSOne. DOI


Pointer MA, Kamilar JM, Warmuth V, Chester SGB, Delsuc F, Mundy NI, Asher RA, Bradley BJ. (2012) RUNX2 tandem repeats and the evolution of facial length in placental mammals. BMC Evolutionary Biology 12:103.  DOI


Bradley BJ, Gerald M, Widdig A, Mundy NI. (2012) Coat color variation and pigmentation gene expression in rhesus macaques (Macaca mulatta). Journal of Mammalian Evolution. DOI


Scally et al. (2012) Insights into hominid evolution from the gorilla genome sequence. Nature 483: 169–175. DOI


Bradley BJ, Lawler RR. (2011) Linking genotypes, phenotypes and fitness in wild primate populations. Evolutionary Anthropology. 20: 104-119. DOI


Kamilar JM, Bradley BJ. (2011) Interspecific variation in primate coat color supports Gloger’s rule. Journal of Biogeography. DOI


Wheeler B, Kamilar JM, Bradley BJ. (2011) Predictors of orbital convergence in primates: A test of the snake detection hypothesis of primate evolution. Journal of Human Evolution. 61: 233-242. DOI


Kamilar JM, Bradley BJ. (2010) Countershading is related to positional behavior in primates. Journal of Zoology. 283: 227-233. DOI


Kamilar JM, Bribiescas RG, Bradley BJ. (2010) Is group size related to longevity in mammals?Biology Letters. DOI


Bradley BJ, Pedersen A, Mundy NI. (2009) Blue eyes in lemurs and humans: Same phenotype, different genetic mechanism. American Journal of Physical Anthropology. 139:269-273. DOI


Voigt C, Kelm D, Bradley BJ, Ortmann S. (2009) Dietary analysis of plant-visiting bats. In:Ecological and Behavioral Methods for the Study of Bats. 2nd edition. Kunz TH and Parsons S, eds. Johns Hopkins University Press.


Bergl RA, Bradley BJ, Nsubuga AM, Vigilant L. (2008) Genetic effects of habitat fragmentation, population size and demographic history on primate populations:  the Cross River gorilla in a comparative context. American Journal of Primatology. 70:848-859. DOI


Bradley BJ, Doran-Sheehy DM, Vigilant L. (2008) Genetic identification of elusive animals: re-evaluating tracking and nesting data for wild western gorillas. Journal of Zoology. 275:333-340. DOI


Bradley BJ, Mundy NI. (2008) The primate palette: The evolution of primate coloration.Evolutionary Anthropology. 17:97-111. DOI


Bradley BJ. (2008) Reconstructing phylogenies and phenotypes: A molecular view of human evolution.  Journal of Anatomy. 212:337-353. DOI

Bradley BJ. (2008) Gorilla tactics. Book review of Gorilla Society by Harcourt & Stewart.  Current Anthropology 49: 1133-1134.


Bradley BJ, Doran-Sheehy DM, Vigilant L. (2007) Potential for female kin associations in wild   western gorillas despite female dispersal. Proceedings of the Royal Society Series B. 274:2179-2185. DOI


Bradley BJ, Stiller M, Doran-Sheehy DM, Harris T, Vigilant L, Poinar H.  (2007)  Plant DNA sequences from feces: Potential means for assessing diets of wild primates. American Journal of Primatology 69:699-705. DOI

Bradley BJ. (2007)  The secret lives of wild gorillas. Christ’s College Magazine 2007.

Ortmann S, Bradley BJ, Stolter C, Ganzhorn JU. (2006) Estimating the quality and composition of wild animal diets- an introduction to methods. In: Feeding Ecology in Apes and other Primates.Hohmann G, Boesch C, and Robbins MM, eds. Cambridge University Press.


Bradley BJ, Pastorini J, Mundy NI. (2005) Successful retrieval of mRNA from hair follicles stored at room temperature: implications for studying gene expression in wild mammals. Molecular Ecology Notes.5: 961-966. DOI


Bradley BJ, Robbins MM, Williamson EA, Steklis DH, Eckhardt N, Boesch C, Vigilant L. (2005) Mountain gorilla tug-of-war: Silverbacks have limited control over reproduction in multi-male groups. Proceedings of the National Academy of Sciences, USA. 102:9418-9423.  DOI


Bradley BJ. (2005) Gorillas loom large. Book review of Gorilla Biology by Taylor & Goldsmith andMountain Gorillas by Robbins et al.  Evolutionary Anthropology. 14:38-40. DOI

Lukas D, Bradley BJ, Nsubuga AM, Doran-Sheehy D, Robbins MM, and Vigilant L. (2004) Major histocompatibility complex and microsatellite variation in two populations of wild gorillas. Molecular Ecology. 13:3389-3402. DOI


Vigilant L, Bradley BJ. (2004) Genetic variation in gorillas. American Journal of Primatology. 64:161-172. DOI


Bradley BJ, Doran-Sheehy DM, Boesch C, Vigilant L. (2004) Dispersed male networks in western gorillas. Current Biology. 14:510-513. DOI

Vigilant L,  Bradley BJ. (2004) Quick guide: Gorillas. Current Biology 14:R826-R827. DOI


Bradley BJ, Doran-Sheehy DM, Vigilant L. (2004) Networking silverbacks? Gorilla Journal.  28:14-15.


Vigilant L, Thalmann O, Bradley BJ. (2004) The problem with gorilla mitochondrial DNA analysis. Gorilla Journal.  28:15-17.


Bradley BJ, Vigilant L. (2002) Evolutionary genetics and molecular ecology of chimpanzees and bonobos.  In: Behavioural Diversity in Chimpanzees and Bonobos. Boesch C, Hohmann G, and Marchant L, eds. Cambridge University Press. 259-276.


Bradley BJ, Vigilant L. (2002) False alleles derived from microbial DNA pose potential source of error in microsatellite genotyping of DNA from feces. Molecular Ecology Notes. 2:602-605. DOI


Bradley BJ, Chambers KE, Vigilant L. (2001) Accurate DNA-based sex identification of apes using non-invasive samples. Conservation Genetics 2:179-181. DOI

Bradley BJ, Nsubuga AM, Robbins MM, Vigilant L. (2001) Gorilla molecular ecology: From the forest to the lab. Gorilla Journal 22:31-33.


Bradley BJ, Boesch C, Vigilant L. (2000) Identification and redesign of human microsatellite markers for genotyping wild chimpanzee (Pan troglodytes verus) and gorilla (Gorilla gorilla gorilla) DNA from faeces. Conservation Genetics 1:289-292. DOI


Bradley BJ. (1999) Levels of selection, altruism and primate behavior.  Quarterly Review of Biology 74:171-194. 

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