[bondserv]

It's not the most rigorous distinction we might hope for.

Humans have a unique creative, intelligent and relational nature.

These together are a clear distinction.

[general_re]

Humans have a unique creative, intelligent and relational nature.

Hard to detect that from your skull alone.

Perhaps we can think of something a bit more concrete.

[RightWingAtheist]

All animals have their own unique "creative, intelligent and relational natures," and this is evidence that behavior and intelligence are evolved characteristics which serve an adaptive function, as the specific intelligent and instinctual traits which are most favorable and iminicable to their survival are the ones which have won out. Our own mental and social structures have enable us to adapt to a wide variety of circumstances.

Why don't IDers ask themselves this: wouldn't the "intelligence" involved in the "design" of life have to evolved somehow, and if not, what designed the designer. Was Yahweh designed by Zeus, who in turn, was designed by Odin? Why can't they ever tell us who this designer is, or what its nature is, without resorting to the Bible or the Koran, or any number of other pre-scientific texts?