The pandemic and recent politics haven't always highlighted the best in human nature. You could be forgiven for surveying the past couple of years and concluding we're often nasty, selfish creatures. Evolutionary biologist Nichola Raihani's book makes the opposite case. "Humans have survived well because of their ability to interact and work with people outside their immediate family groups, organizing around shared needs," Raihani explains, insisting that, in the long run at least, "our cooperative nature tends to win out."