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
Problems Playing Video? | Closed Captioning
Clip | 13m 31s | Video has closed captioning.
Preserved soft tissue, including possible blood vessels, turn up in dinosaur fossils.
Aired: 06/01/07
Problems Playing Video? | Closed Captioning