how unique is man?

i was watching an animation of the 6 days of creation and was struck by something. we didn't get our own day!!

with all the emphasis on our uniqueness, and being made in God's image, etc., i just naturally assumed we were the 6th day, the climax. But when it got to the 6th day it said he made the beasts of the field... i was like, wait! what about us? and then i remembered that we were made on the same day as the animals. i was kinda miffed...

yes, we are made in God's image, but maybe we aren't all that much different from the animals after all!! Actually, the dna difference between us and chimpanzees is very small.

I'd love to know what that difference is that made us different than animals, that made us actually like him... Yes, speech, rational thought, self-consciousness, relationships, communion with God, creativity, etc., all seem more well developed in us than in other animals... but im looking for something more definitive. black and white. Not just more like God than the animals. Is there one essential difference that stamps us imago dei?