EarthLife may have begun on Earth 100 million years earlier than we thought A new timeline of early evolution suggests life on Earth began 100 million years earlier than we thought, while meteorites were still pummelling the planet News
HumansThe truth about intelligence: What makes someone smarter than others?Our search for genes associated with brainpower is starting to bear fruit, but isn’t the whole story. Your IQ is influenced by many subtle factorsFeatures