Have you ever imagined a lion dance with a high-tech twist? 🐶In Shenzhen, Guangdong, robotic dogs are taking the traditional ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.