NOVA scienceNOW

T. Rex Blood?

Clip | 13m 31s | Video has closed captioning.

Preserved soft tissue, including possible blood vessels, turn up in dinosaur fossils.

Aired: 06/01/07

Rating: TV-G

Problems Playing Video? | Closed Captioning

Funding for NOVA ScienceNOW is provided by the National Science Foundation and the Alfred P. Sloan Foundation.