: New innovations in gene and stem cell technology have the power to shape ecosystems and even change humanity. On this week's show, TED speakers share the breakthroughs heralding the next scientific revolution.

In 2011, biochemist Jennifer Doudna helped discover the genetic editing tool CRISPR. Today CRISPR is actively deployed in clinical trials with the potential to cure disease--and alter human evolution.

Stem cells have long been heralded as a potential tool to treat illnesses. Nabiha Saklayen explains how it's still early, but scientists are getting closer to turning this vision into a reality.

What if we could rescue endangered species before they disappear? Biotech entrepreneur Ryan Phelan explores how genetic engineering tools can save species that would otherwise go extinct.