Do human brains differ from other large animal brains ?
“The scientist Herbert Haug carried out a detailed comparative study of the anatomy of the elephant, dolphin and human brains to see if he could find out how the brains might relate to the intelligent behavior of these creatures. The brains differ distinctly from one another, but all are large. The elephant has the largest brain of all land animals; an adult elephant’s brain weighs on average between nine and twelve pounds. But, of course, the elephant also has the largest body of all land animals. The elephant’s brain makes up about 0.08 percent of the total body weight, while a horse’s makes up about 0.25 percent of its total body weight. The human brain weighs three to four pounds and is also relatively large, making up 2 percent of our body weight.
