Table 1.

Cellular composition of Artiodactyla brains.

	Sus scrofa domesticus	Antidorcas marsupialis	Damaliscus dorcas phillipsi	Tragelaphus stripceros	Giraffa camelopardalis
MBD, kg	~100	25	60	218	470
MBR, g	64.180	106.074	154.718	306.860	537.218
MCxT, g	42.202	68.806	111.310	213.370	398.808
MHP, g	1.928	3.434	2.266	10.936	7.486
MCB, g	8.128	11.458	13.402	31.776	67.730
MRoB, g	13.850	25.810	30.006	61.716	70.680
MD+BG, g	6.728	12.194	n.a.	30.418	33.322
MMES, g	2.338	5.304	n.a.	12.902	15.928
MP+M, g	4.784	8.312	8.060	18.396	21.430
MOB, g	0.822	1.200	n.a.	5.546	2.052
NBR	2.22 × 109	2.72 × 109	3.06 × 109	4.91 × 109	10.75 × 109
NCxT	307.08 × 106	396.90 × 106	570.67 × 106	762.57 × 106	1.73 × 109
NGM	207.75 × 106	293.77 × 106	361.95 × 106	596.21 × 106	1.33 × 109
NHP	12.91 × 106	20.48 × 106	22.09 × 106	28.36 × 106	58.59 × 106
NCB	1.86 × 109	2.26 × 109	2.40 × 109	4.04 × 109	8.88 × 109
NRoB	58.71 × 106	70.48 × 106	86.43 × 106	106.59 × 106	142.70 × 106
ND+BG	34.40 × 106	40.12 × 106	n.a.	58.88 × 106	68.63 × 106
NMES	12.43 × 106	7.52 × 106	n.a.	26.07 × 106	26.63 × 106
NP+M	11.88 × 106	22.84 × 106	20.72 × 106	21.64 × 106	47.72 × 106
NOB	9.20 × 106	16.00 × 106	n.a.	38.33 × 106	24.68 × 106
DNCxT	7276	5768	5127	3574	4339
DNGM	7375	6684	5142	4644	5882
DNHP	6695	5965	9750	2594	8435
DNCB	228,632	196,999	179,206	127,218	131,080
DNRoB	4238	2731	2880	1727	2019
DND+BG	5113	3290	n.a.	1936	2060
DNMES	5317	1418	n.a.	2594	1672
DNP+M	2483	2748	2570	1176	2227
DNOB	11,187	13,332	n.a.	6912	12,026
O/NBR	2.111	2.170	3.054	3.456	3.526
O/NCXT	10.585	10.396	11.851	16.133	15.900
O/NGM	8.544	7.239	8.356	8.754	7.763
O/NHP	10.334	10.111	9.246	17.868	10.628
O/NCB	0.188	0.207	0.184	0.313	0.622
O/NRoB	18.682	18.710	24.718	31.980	34.190
O/ND+BG	17.779	19.408	n.a.	31.841	38.841
O/NMES	15.667	30.250	n.a.	30.546	41.017
O/NP+M	24.452	13.706	22.810	34.088	23.483
O/NOB	8.434	6.576	n.a.	8.523	9.417

Cellular composition of the five artiodactyl species. M, mass of body (M_BD) or brain structure; N, number of neurons; DN, neuronal density (in neurons/mg); O/N, ratio between numbers of other (non-neuronal) cells and neurons. BR, whole brain (excluding the olfactory bulb); CXT, whole cerebral cortex (gray matter, white matter and hippocampus); GM, gray matter of the cerebral cortex; HP, hippocampus; CB, cerebellum; RoB, rest of brain (the sum of diencephalon + basal ganglia, mesencephalon, and pons + medulla); D + BG, diencephalon + basal ganglia; MES, mesencephalon; P + M, pons + medulla; OB, olfactory bulb. All values refer to the two hemispheres together.