by Mark Gerzon
an excerpt from Kosmos Journal

The truth is: we were already global citizens before we were born. It began with our own DNA. The genes that provide the blueprint for our bodies are more than 99% identical to the genes of all other humans. Genomic research has now established exactly who our ancestors are and where they came from. Our genes are, in fact, an evolutionary “Global Positioning System” because they establish with uncanny accuracy our family tree going all the way back to the beginning of Homo sapiens.