If only the fittest survive, why do good deeds for no return? The enduring mystery of altruism goes to the heart of how evolution does – and doesn’t – work
Source:
https://www.newscientist.com/article/mg24432601-600-no-more-goody-two-shoes-why-true-altruism-cant-exist/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home