Humans have always longed to explore underwater, but the need to breathe air has been an obstacle. From as far back as the 4th century B.C.E., clever inventors have been designing technology to give us face time with the creatures of the sea.
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Elizabeth Peratrovich
43:42

SYMHC Classics: Dr. Lucy Hobbs Taylor
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Behind the Scenes Minis: Carry-on Bags
28:38