3 ms·

The article ends with: "It doesn’t mean it has an evolutionary basis." If not evolution, then what? Doesn't all behavior have an evolutionary basis?

• acchow 9y ago
  No. There is a technical term for this - can someone help me out? I can't remember it....
  • jacquesm 9y ago
    Philanthropy? Selflessness? Sacrifice?
  • artgon 9y ago
    Yes. They're called non-adaptive traits or spandrels: https://en.wikipedia.org/wiki/Spandrel_(biology) https://en.wikipedia.org/wiki/Spandrel_(biology)