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 News
LifeOldest dog burial suggests prehistoric humans loved dogs as pets A dog that was buried with its owners 14,000 years ago was chronically ill throughout its life, yet its owners repeatedly nursed it back to health – suggesting a deep bond of friendship News