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.
Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...
CP24气象学家Bill Coulter表示,周五有一股强劲气流从多伦多南部经过。尽管主要降雪区域预计在伊利湖北岸及更南部地区,但如果风暴路径稍微北移,多伦多可能会迎来混乱的下午通勤。