Why our brains see the world as ‘us’ versus ‘them’

NewImageBrain battle between distrust and reward:

‘At the most fundamental level of biology, people recognize the innate advantage of defining differences in species. But even within species, is there something in our neural circuits that leads us to find comfort in those like us and unease with those who may differ?…’

Via The Conversation


The Longest Longest Day

NewImageThis Solstice, Earth’s Days Are Longer Than Ever:

‘[Geoscientists] recently showed that 1.4 billion years ago, a single “day” lasted only about 18 hours. And changes in the gravitational dance between our planet and the moon are causing Earth’s day to get ever so slightly longer each year….’

Via National Geographic