And quite easily perused,
In places wholly unexpected
DNA 's now being used:
Thus, to better understand
How language moved from place to place,
People from quite different lands
Through their DNA were traced.
But the most amazing news
Is, by examining some genes,
One is able to deduce
The face of one who'd left the scene...
Eye color or shape of nose,
Hair that's flowing or is tight,
DNA can now disclose
Who had visited a site...
No more film or cameras,
No more photographs to snap,
All one needs is one swift pass
Through a gent's genetic map.
Thus biology pervades
Every scientific quest,
One can hardly speculate
Where DNA will show up next...