species	body.kg	brain.gAfrican elephant	6654	5712African giant pouched rat	1	6.6Arctic Fox	3.385	44.5Arctic ground squirrel	0.92	5.7Asian elephant	2547	4603Baboon	10.55	179.5Big brown bat	0.023	0.3Brazilian tapir	160	169Cat	3.3	25.6Chimpanzee	52.16	440Chinchilla	0.425	6.4Cow	465	423Desert hedgehog	0.55	2.4Donkey	187.1	419Eastern American mole	0.075	1.2Echidna	3	25European hedgehog	0.785	3.5Galago	0.2	5Genet	1.41	17.5Giant armadillo	60	81Giraffe	529	680Goat	27.66	115Golden hamster	0.12	1Gorilla	207	406Gray seal	85	325Gray wolf	36.33	119.5Ground squirrel	0.101	4Guinea pig	1.04	5.5Horse	521	655Jaguar	100	157Kangaroo	35	56Lesser short-tailed shrew	0.005	0.14Little brown bat	0.01	0.25Man	62	1320Mole rat	0.122	3Mountain beaver	1.35	8.1Mouse	0.023	0.4Musk shrew	0.048	0.33N. American opossum	1.7	6.3Nine-banded armadillo	3.5	10.8Okapi	250	490Owl monkey	0.48	15.5Patas monkey	10	115Phanlanger	1.62	11.4Pig	192	180Rabbit	2.5	12.1Raccoon	4.288	39.2Rat	0.28	1.9Red fox	4.235	50.4Rhesus monkey	6.8	179Rock hyrax (Hetero. b)	0.75	12.3Rock hyrax (Procavia hab)	3.6	21Roe deer	14.83	98.2Sheep	55.5	175Slow loris	1.4	12.5Star nosed mole	0.06	1Tenrec	0.9	2.6Tree hyrax	2	12.3Tree shrew	0.104	2.5Vervet	4.19	58Water opossum	3.5	3.9Yellow-bellied marmot	4.05	17