[wyager]

Animals aren't "eco-friendly" because they're intelligent; if they're eco-friendly at all, it's because they're too dumb to do otherwise. Many animals (cf invasive species) are extremly destructive.

Many animals exhibit a much greater degree of tribalism than humans. Consider wild canid species like wolves. Tribalism in humans isn't "made up" either, it makes a lot of sense from an evolutionary perspective even if it's possibly not as useful today.