Dr Sylvia Earle in an undersea world. (image courtesy Sylvia Earle)

Join Ira Flatow in this hour for a conversation with undersea explorer and marine biologist Dr. Sylvia Earle about the state of our oceans ...and a global plan for ocean conservation. Earle, one of the National Geographic Society's 'Explorers in Residence,' is known for her extensive underwater work -- to the point that she's been saddled with nicknames such as as "Her Deepness" and "The Sturgeon General." Dr. Earle has led more than 60 expeditions worldwide involving in excess of 7000 hours underwater in connection with her research. We'll get her perspective on the watery world around us.

Buitreraptor gonzalezorum, which belonged to a group of bipedal, meat-eating dinosaurs called dromaeosaurids. Photo John Weinstein, © The Field Museum.

Plus, we'll get the latest in dinosaur news. Last month, fossil-hunters in Argentina reported the discovery of the earliest and most complete example of a dromaeosaurid known. The dromaeosaurid was a small dinosaur related to today's birds. Last week researchers announced the discovery of a fossil crocodile-like animal with the head that looks more like a Tyrannosaurus -- a find that was dubbed 'Godzilla' by fans. This week, evidence (in the form of fossilized dung of sauropod dinosaurs) for grass-eating dinos was announced.

We'll get the latest on all the dinosaur news.Call in with your questions and comments at 1-800-989-8255 (2-3 Eastern). Teachers, find more information about using Science Friday as a classroom resource in the Kids' Connection.

Guests:
Peter Makovicky
Assistant Curator, Paleontology
The Field Museum
Chicago Illinois

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Sylvia Earle
Marine Biologist
Editor, "Defying Ocean's End: An Agenda for Action" (Island Press, 2004)
Explorer-in-Residence, National Geographic Society
Executive Director for Marine Programs, Conservation International
Washington, DC

Books/Articles Discussed:

"Defying Ocean's End: An Agenda for Action," co-edited by Sylvia Earle. Island Press, 2004.

(find books discussed on previous broadcasts)

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This segment produced by Karin Vergoth