Mournful Crow said:
For me, I'd say a dead one
Really? Let's examine this
- survivability - I think we can put a great big red
X here. It's
dead by definition it failed surviving.
- body structure - well that's a ??? isn't it. The body structure of a dead organism is...undefined.
- sociality -
X
- adaptability -
X...although it would adapt nicely into "nothing" in a while. It would be practically immortal, if it weren't for the fact that it is gone.
So, I think your suggestion failed to pass your criteria.
Not to mention that the criteria are unclear. Ducks are better than bears in some regards, e.g., they can fly, but worse in others, e.g., they aren't bears. So if the criteria is "what makes the best duck", then the answer would be "ducks" but then again, humans are better than ducks in many regards. Only there are things that are better than humans depending on which context you use.