Creation
In the Information Age, many lines that separate artificial and authentic have been blurred. Computers are now capable of many of the same tasks that we humans do, but they have yet to possess the capability to create. They have to be programmed to do something, and the programming is made from a thought that already exists. Computers can't explain why Leonardo Da Vinci was such an artistic genius. Computers can't tell us how Beethoven's pieces are able to move something inside of us. Computers can't read the emotion in the words of Mark Twain. That is only left up to the human.
Humans alone are able to create works of art, things of beauty, pieces that display one's pain and feelings. Sure, we're good at making tools, but other animals can do that too. We may be a compassionate and empathetic species, but other species can be too. No other animal, though, can send out a message that can't be put into words. No other animal can create something that tells a tale that speaks to each individual.