Yucatan Sinkhole, Shark Biology and Ocean Defenses

The Muyal-Ha sinkhole in the Yucatan, which is more than 100 feet deep; the biology and diversity of sharks.

English

Originally Aired October 8, 2011
Runtime 30 minutes
Content Rating United States of America TV-G
Network PBS
Created September 4, 2011 by
Administrator admin
Modified September 4, 2011 by
Administrator admin