NOVA scienceNOW

Season 3 Episode 10: T-Rex Blood, Epigenetics, Kryptos

T-Rex Blood? - Preserved soft tissue, including possible blood vessels and red blood cells, are turning up in dinosaur fossils. Epigenetics - Our lifestyles can change the way our genes are expressed, leading even identical twins to become distinct as they age. Kryptos - A coded sculpture at CIA headquarters has yet to be fully broken. Profile: Arlie Petters - A boy from a rural village in Belize grows up to become a world-class mathematician and cosmologist.

Genre:

Documentary, News

Seasons:

6

Episodes:

40

Cast:

David Pogue, Ziya Tong, Peter Standring

Quality:

HD

Duration:

55 min

First Air:

2005

Rating:

8.0