Research made national news this week that the cookies are more addictive than psychoactive drugs. That claim may be exaggerated, but the neuroscience of junk food addiction is nonetheless fascinating and relevant—mentally, physically, and socially.

It's not just crystal-covered balls. Cities across the country have their own variations on the old "dropping things to celebrate time's passage" tradition.

Once used for cat food, the endangered fish is now one of the most prized delicacies in the world.