A leading geneticist demonstrates the absence of evidence supporting the existence of separate races within humanity.

To many, it seems obvious that people with different skin tones, facial types, and 'natural' attributes must be different in kind from each other — effectively smaller sub-species within Homo sapiens.

But the fact is, we're all related and share recent, common ancestors.

Popular broadcaster and geneticist Dr. Adam Rutherford regularly finds himself trolled online by those driven by prejudice, clinging to their own experience over proven science.

Once we accept the Darwinian idea of adaptation to environments over generations and take a good look at the math, it's clear that a single source point can lead to vast differences over time.

Rutherford provides the simple arguments required to prove racists dead wrong — if they ever get as far as debating.