This just in*...
In our bodies, human cells are outnumbered by bacterial cells ten to one. You are less you than you are bacteria. Chew on that.
Here is the link to a story about it:
WE ARE BACTERIA
Also, I suggest reading A Short History of Nearly Everything by Bill Bryson. The above fact is one of many in this mind-blowing science book.
*Not exactly just in. More like, in several years ago but you probably don't know about it yet.