Table 2.

Numbers of neurons in the nuclei of the superior olivary complex

	MNTB	LSO	MSO	LSO/MNTB	LSO/MSO
Human	–	1,980	3,891		0.51
Bonobo	976	3,054	4,006	3.1	0.76
Chimpanzee	1,180	3,116	4,489	2.6	0.69
Gorilla	1,800	5,080	4,614	2.8	1.10
Orangutan	3,104	7,113	5,231	2.3	1.36
Gibbon	2,211	2,049	3,346	0.9	0.61
Macaca	2,543	2,630	2,899	1.0	0.90