All Species or Forms of Life - Genetic Brothers

We are all genetic brothers. The chain of life, tracing back to that primordial day of life's beginning, is unbroken

in reference to:

"We are all genetic brothers. The chain of life, tracing back to that primordial day of life's beginning, is unbroken"
- Clifford D. Simak - Wikiquote (view on Google Sidewiki)