More than two millennia ago, Teotihuacan was a thriving metropolis in central Mexico with up to 125,000 inhabitants. The city ...

Participants found simple, reader-friendly signs to be the most persuasive. Graphics that illustrated good behavior also swayed viewers: They liked the visual separation between cars and bears in ...

Are you an avid horse bettor who likes to play the ponies every weekend? Or do you prefer to play only on the big race days such as the Kentucky Derby, Preakness Stakes, Belmont Stakes or Breeders' ...