Is Goodness Natural?
If increased reproduction is the ultimate end of evolution by natural selection, then altruists should disappear – and fast. But they don’t, because the "survival of the fittest" also depends on blood kinship and reciprocity.
https://prosyn.org/C4QoLyI
It is hard to imagine that anyone thinks of goodness as a problem, but Charles Darwin did. The little worker bees that sacrificed themselves to protect their hives – the ultimate example of animal goodness – kept Darwin up at night.