May 23, 2018 at 10:16AM
via L.A. Times - UCLA Bruins

Compared to the rest of the animal kingdom, the human brain is way out of whack.

Our brains are roughly six times larger than what you would expect for a placental mammal of our stature, scientists say.

And no other animal has a brain as large as ours relative to body size.

So why did humans evolve...