HumansThe desire for legacy is a mental glitch but we can use it for good The strange drive to be remembered after death may result from a cognitive glitch, but it could help solve big problems from climate change to inequality Features
HumansOur ancestors may have come close to extinction 900,000 years ago A genetic analysis suggests our ancestral population fell as low as around 1300 individuals nearly a million years ago, but other experts aren't convinced ¿ìè¶ÌÊÓÆµ