Wray Herbert reports on new research that shows the biological root for our self-control is the same as that found in dogs:

It appears that the hallmark sense of ­human identityour selfhoodis not a prerequisite for self-discipline. Whatever it is that makes us go to the gym and save for college is fueled by the same brain mechanisms that enable our hounds to sacrifice their own impulses and obey.

(Image from Dogs Gods by Tim Flach via The Coolist)