HumansWorld's most-spoken languages may have arisen in ancient Iran About 3 billion people speak Indo-European languages like English and Hindustani, and it seems the first such tongue was spoken south of the Caucasus mountains ¿ìè¶ÌÊÓÆµ
LifeHorses remember if you smiled or frowned when they last saw you Horses can remember the expressions on people’s faces and use them to make judgements about whether people are nice or unpleasant ¿ìè¶ÌÊÓÆµ