What did the East Coast Look Like 3 Million Years Ago?
Clip: Season 47 Episode 1 | 3m 21s | Video has closed captioning.
To illustrate how the coastline might look if Earth's climate continues to warm, paleontologist Kirk Johnson and geologist Maureen Raymo search for 3-million-year-old clams in a Virginia quarry miles offshore.
Problems Playing Video? | Closed Captioning