The five primarily accepted traits or charachteristics that define us as humans would have to be;
1. Bipedalism- Walking upright may not truly be unique to man, but is remains a very unique trait.
2.Dependent on material culture- This began as far back as the need to use stone tools, and lives out in modern culture with the iPod.
3.Hunting- Now that Humans had tools, they use them to hunt animals, instead of scavenging.
4.Domestication / Farming- Archaeologist suggest that domestication and farming occurred independently three or four times around the world 11000 years ago.
5.Symbolic behavior and culture- The real differences between apes and man lie in our capacity to live in an imagined world.
Humans are the only species who have both the intellegence and ambition to create boats, airplanes and spaceships. But we also are the only species to develope weapons of mass destruction and create defined methods for murder and we are alos the only species who kills for sport. Although we are most beautiful when we are in love, having this ability defines us above all things, as spiritual creatures.