taxon	body_mass	brain_size	longevity
raccoon	1.04	1.60	2.71
bear	2.39	2.66	3.40
sea_lion	2.30	2.74	3.18
seal	1.88	2.45	3.47
monkey	0.60	1.85	3.69
cat	0.56	1.30	2.56
weasel	-0.30	0.85	1.79
dog	1.18	1.87	2.64