Mankind is unique among all the creatures in this world. But is there really anything we do that other creatures don't do? We can fly -- but the geese were there in the skies, flying in formation, long before us. Expert climbers can rappel down a cliff on a slender rope -- but the spiders were doing that on their slender threads long ago. We can dive into the ocean -- and we come to a place where the fishes and other creatures of the deep have been for ages.
What exactly is unique about us? One is our quest for knowledge. Another is our quest for accomplishment. But at a basic level we have the ability to look at any creature in all the world and see possibilities. Birds do not look at fish or spiders and see the possibilities of SCUBA gear or rappelling. They may see dinner (depending on the type of bird), but they do not see a way to transcend their own limitations.
As the ancients said, we are in the "image of God" -- God who saw the possibilities and created.
Note: I know it is traditional, at this point, to launch into hand-wringing over the evils done by mankind. But I'm going somewhere else with this ... a little patience, please.