Species cerebellum body Mouse 0.09 58 Bat 0.09 30 FlyingFox 0.3 130 Pigeon 0.4 500 GuineaPig 0.9 485 Squirrel 1.5 350 Chinchilla 1.7 500 Rabbit 1.9 1800 Hare 2.3 3000 Cat 5.3 3500 Dog 6.0 3500 Macaque 7.8 6000 Sheep 21.5 25000 Bovine 35.7 300000 Human 142 60000