‘Reawakening Extinct Species’, A Look at the New Field of De-Extinction

In “Reawakening Extinct Species,” PBS show Quest takes look at the young field of de-extinction, in which scientists are working to bring extinct species back through processes like cloning. The 100,000 year shelf-life of DNA takes older creatures out of the running, so the field is focused on more recently extinct animals such as the passenger pigeon, which went from being one of the most abundant birds in the world to complete extinction over the course of 50 years.

via Boing Boing