A West Point study's claim that cadets with more grit were 99% more likely to complete training turns out to have been based on an error in the data.
The same brain hormone affects feelings and behaviors in both chimps and humans, causing humans and chimps to share a variety of traits.
Try running your fingers along your scalp. You’ll find bumps and ridges and planes. The human skull is anything but round! Learn more on this Moment of Science.