species BrainAvg LogBrnAvg Neo Cereb LogNeo LogCereb LogBodyIsler NotNeoCereb logBrnNotNeoCereb ref for brains Alouatta_palliata 43520 4.639 28575.9 4365.2 4.456 3.64 3.728 10578.9 4.024 Barton&Venditti Alouatta_seniculus 43189 4.635 29512.1 5069.9 4.47 3.705 3.717 8606.9 3.935 Barton&Venditti Aotus_trivirgatus 15000 4.176 9204.5 1499.7 3.964 3.176 2.995 4296.2 3.633 Barton&Venditti Ateles_geoffroyi 100925 5.004 72610.6 10423.2 4.861 4.018 3.886 17891.2 4.253 Barton&Venditti Avahi_laniger 9797 3.991 4808.4 1489.4 3.682 3.173 3.082 3499.5 3.544 Stephan Callicebus_moloch 14924 4.174 9120.1 1352.1 3.96 3.131 2.995 4451.5 3.649 Barton&Venditti Callimico_goeldii 10520 4.022 6471.4 1238.8 3.811 3.093 2.599 2809.4 3.449 Barton&Venditti Callithrix_jacchus 7244 3.86 4375.2 756.8 3.641 2.879 2.505 2112.3 3.325 Barton&Venditti Callithrix_pygmaea 4305 3.634 2535.1 467.7 3.404 2.67 2.064 1302.4 3.115 Barton&Venditti Cebus_albifrons 66988 4.826 49431.1 7620.8 4.694 3.882 3.304 9936.6 3.997 Barton&Venditti Cebus_apella 66475 4.823 44978 6501.3 4.653 3.813 3.405 14995.7 4.176 Barton&Venditti Cercocebus_torquatus 107965 5.033 76207.9 8109.6 4.882 3.909 3.753 23647.5 4.374 Barton&Venditti Cercopithecus_ascanius 63767 4.805 42756.3 5649.4 4.631 3.752 3.463 15360.9 4.186 Barton&Venditti Cercopithecus_mitis 70632 4.849 45919.8 6053.4 4.662 3.782 3.594 18658.5 4.271 Barton&Venditti Cercopithecus_nictitans 64740 4.811 47752.9 4808.4 4.679 3.682 3.629 12178.7 4.086 Barton&Venditti Cheirogaleus_major 6365 3.804 2937.7 946.2 3.468 2.976 2.602 2481.4 3.395 Stephan Cheirogaleus_medius 2960 3.471 1221.8 436.5 3.087 2.64 2.145 1301.3 3.114 Stephan Daubentonia_madagascariensis 42643 4.63 22130.9 6456.5 4.345 3.81 3.414 14055.1 4.148 Stephan Erythrocebus_patas 96138 4.983 73620.7 8072.4 4.867 3.907 3.813 14445 4.16 Barton&Venditti Eulemur_fulvus 22126 4.345 12218 3326.6 4.087 3.522 3.251 6581.7 3.818 Stephan Eulemur_mongoz 22240 4.347 12060 2366 4.081 3.374 3.084 7814 3.893 Bush Galago_senegalensis 4044 3.607 1766.5 544.4 3.33 2.827 2.288 1733.2 3.23 "Stephan, Bush" Galagoides_demidoff 3207 3.506 1566.8 413 3.195 2.616 1.873 1227.5 3.089 Stephan Gorilla_gorilla_gorilla 422831 5.626 297851.6 62950.6 5.474 4.799 4.854 62029.1 4.793 Barton&Venditti Homo_sapiens 1267248 6.103 1002305.2 139315.7 6.001 5.144 4.813 125626.9 5.099 Barton&Venditti Hylobates_lar 93295 4.97 63095.7 12589.3 4.804 4.103 3.75 17609.8 4.246 Barton&Venditti Indri_indri 36309 4.56 20090.9 5508.1 4.303 3.741 3.812 10710 4.03 Stephan Lagothrix_lagotricha 95499 4.98 62950.6 11641.3 4.799 4.066 3.846 20907.4 4.32 Barton&Venditti Lemur_catta 21000 4.322 11080 2679 4.045 3.428 3.34 7241 3.86 Bush Lepilemur_mustelinus 7180 3.856 3281 1164.1 3.516 3.066 2.905 2735.3 3.437 Stephan Lophocebus_albigena 112000 5.049 70794.6 10839.3 4.85 4.035 3.779 30366.2 4.482 Barton&Venditti Loris_tardigradus 6265 3.797 3523.7 727.8 3.547 2.862 2.284 2013.8 3.304 Stephan Macaca_mulatta 80841 4.908 55335 7227.7 4.743 3.859 3.754 18277.9 4.262 Barton&Venditti Mandrillus_sphinx 127610 5.106 99311.6 9057.3 4.997 3.957 3.952 19241.1 4.284 Barton&Venditti Microcebus_murinus 1644 3.216 714.1 219.5 2.869 2.369 1.814 710 2.849 "Stephan, Bush" Miopithecus_talapoin 37757 4.577 26668.6 3531.8 4.426 3.548 3.079 7556.8 3.878 Barton&Venditti Nasalis_larvatus 92897 4.968 52360 9885.5 4.719 3.995 3.988 30651.1 4.486 Barton&Venditti Nycticebus_coucang 11435 4.058 5832.2 1352.6 3.792 3.117 2.815 4249.9 3.628 "Stephan, Bush" Otolemur_crassicaudatus 8870 3.948 4196.3 1143.3 3.674 3.15 3.061 3530.6 3.548 "Stephan, Bush" Pan_paniscus 316950 5.501 225943.6 46881.3 5.354 4.671 4.521 44125.1 4.645 Barton&Venditti Pan_troglodytes_troglodytes 361271 5.558 282488 44978 5.451 4.653 4.606 33805.1 4.529 Barton&Venditti Papio_anubis 159549 5.203 122461.6 14825.2 5.088 4.171 4.086 22262 4.348 Barton&Venditti Perodicticus_potto 11959 4.078 5615.7 1510.6 3.825 3.23 2.923 4833.1 3.684 Stephan Piliocolobus_badius 73790 4.868 51168.2 8550.7 4.709 3.932 3.853 14071.6 4.148 Barton&Venditti Pithecia_pithecia 32885 4.517 20941.1 3741.1 4.321 3.573 3.215 8202.9 3.914 Barton&Venditti Pongo_pygmaeus 399250 5.601 306196.3 52844.5 5.486 4.723 4.568 40209.1 4.604 Barton&Venditti Propithecus_verreauxi 25178 4.401 13182.6 3953.7 4.12 3.597 3.445 8041.3 3.905 Stephan Pygathrix_nemaeus 72611 4.861 48752.8 8053.8 4.688 3.906 3.999 15804 4.199 Barton&Venditti Saguinus_midas 9572 3.981 5888.4 1061.7 3.77 3.026 2.728 2621.8 3.419 Barton&Venditti Saguinus_oedipus 9528 3.979 5888.4 984 3.77 2.993 2.631 2655.5 3.424 Barton&Venditti Saimiri_sciureus 22229 4.347 15595.5 2588.2 4.193 3.413 2.914 4044.9 3.607 Barton&Venditti Semnopithecus_entellus 107540 5.032 76032.6 11428.8 4.881 4.058 4.04 20078.6 4.303 Barton&Venditti Tarsius_spectrum 3393 3.531 1766 427.6 3.247 2.631 2.097 1199.4 3.079 Stephan Tarsius_syrichta 3060 3.486 1621 294.3 3.21 2.469 2.111 1144.7 3.059 Bush Varecia_variegata 29730 4.473 15275.7 4285.5 4.184 3.632 3.553 10168.9 4.007 Stephan