This episode takes the viewers for an underwater tour from southern Alaska to the South Pacific. The tour begins with a faux submersible ride through the nutrient rich waters near Monterey, California. Then we have a look at the low dissolved oxygen problem that has many scientists concerned about the health of Hood Canal. Diving below the chilly waters of southern Alaska is a precursor to watching one of the many relationships between different underwater species in the warm waters of Papua New Guinea.moreless
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