1 videodisc (approximately 60 min.) : sound, color ; 4 3/4 in.
two-dimensional moving image tdi rdacontent
video v rdamedia
videodisc vd rdacarrier
4 3/4 in.
digital optical surround Dolby rda
video file DVD video rda
In English ; with optional English subtitles for the deaf and hard of hearing (SDH).
Narrator, Jeffrey Wright.
Editor, Sarah Holt.
Originally broadcast in 2014 on the Smithsonian Channel.
DVD; NTSC; region 1; widescreen presentation; stereo.
Follows scientists around the globe as they unravel the mysteries of two of the most dramatic mass extinctions: the "K/T Extinction" that wiped out the dinosaurs, and "The Great Dying," which obliterated nearly 90% of all Earth's species.