The evolution of the legendary New York City rat
Clip: Season 4 Episode 1 | 5m 31s
For the past four years, researchers have been trapping rats and extracting their DNA to learn more about their evolutionary origins and their interactions with urban environments. Dr. Munshi- South joins Hari Sreenivasan to discuss the rats of New York City.
Aired: 10/02/17Video has closed captioning.