Marie Tharp pioneered mapping the bottom of the ocean 6 decades ago – scientists are still learning about Earth’s last frontier
Despite all the deep-sea expeditions and samples taken from the seabed over the past 100 years, humans still know very little ...
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The Americas Highlights The Island-Living Horses of the Atlantic Coast's Barrier Islands
The Americas dives into the mystery of wild horses have been living on the Atlantic coast's barrier islands for 500 years.