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Elephant Seal Tagging

Season 1 Episode 3 | 2m 45s

Elephant seals act as living submarines, diving as deep as 5,500 feet and staying under the ice for up to 90 minutes. Seals are tagged to create a record of the increasing seawater temperature. The sedated seal is fitted with miniature oceanographic sensors. They’ll record the location, depth and water temperature whenever the seal dives

Extras
Explore the life and legacy of notable Black scholar and civil rights pioneer W.E.B. Du Bois.
Cyril and Rosalind discuss his upcoming divorce.
Cyril asks Rosalind to go away for the weekend.
Rosalind surprises Cyril when he shares his plans for their weekend away.
Follow filmmaker Julie Forrest Wyman as she searches for her place in the little people community.
Rosalind faces a troubling domestic issue as Joyce befriends a single mother with placenta previa.
Everyone is talking about the time capsule, including the women of Nonnatus House.
The Turner children are hard at work planning their time capsule.
Sister Catherine finds the perfect way to ensure Nonnatus House is never forgotten.
Phyllis shares a touching time capsule message with Miss Higgins.
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