Living Fossils

Changing Seas poster
Changing Seas
18th June 2014 Season 6 Episode 1

Crinoids have been around in various forms since before the age of dinosaurs. Now experts descend into the deep to study the animals from a submersible.

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Season 6 · Episode 2

Biggest Fish in the Sea

Each summer, the world's largest known aggregation of whale sharks occurs just off the coast of Cancun, Mexico, giving experts the opportunity to learn more about the largest fish in the sea.
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01 Craig Sechler profile Craig Sechleras Narrator (voice)
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