Definitely, beavers are excellent, but not on purpose. When we say "human hubris" we're thinking of ourselves as bad for being able to think of things. Bacteria

Definitely, beavers are excellent, but not on purpose. When we say "human hubris" we're thinking of ourselves as bad for being able to think of things. Bacteria, by comparison, cause less havoc, but that's because their activities are limited by what's evolutionarily adaptive. They caused a mass extinction once, but that was a couple of billion years ago. None of the other creatures are being deliberately good. Neither are humans, on the whole, but at least it troubles our minds sometimes.