> ## Content Index
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# Bones to DNA
- URL: https://www.cascadepbs.org/movies/time-team-america-search-josiah-henson/extras/time-team-america-bones-dna/
- Published: 2025-05-02T19:05:19.000Z
- Updated: 2025-06-07T23:07:57.000Z
- Description: Archaeologist Lauren O’Shea demonstrates how ancient bone can be broken down into DNA.
- Author: Cascade PBS Staff
- Tags: The Search for Josiah Henson, #ZZZ_Show_7a173a56-dacd-43d9-8960-5a4f51db7cc2, #hide, #v1.3, #ZZZ_Extra_b955a41a-db9b-4a5d-9ef7-693497916e9f, #movie-extra

Archaeologist Lauren O’Shea studies ancient bison DNA. She demonstrates in the lab how a chunk of bone can be broken down into DNA for analysis. DNA tells a history. “It’s not the written record,” she says, “but it’s a biological record of the past.”