Sudden death of all penguins and impact on ecosystem Penguins as food for humans Hail & sleet's affect on birds Polar duke in harm's way (the drake passage) Orca whales in antarctica Age of captains of the polar duke Cost of sending the polar duke to antarctica Risks aboard the polar duke Polar duke stuck in the ice Telling directions Disposing of human wastes in antarctica Insects in antarctica Volcanic eruptions -- type and frequency Antarctica's land surface and past high temperature Opportunities for military service in antarctica Effect of volcanoes 
(the polar duke Polar duke; stuck; in the ice Telling directions) (the ice Telling directions; Disposing; of human wastes; L:in antarctica Insects in antarctica Volcanic eruptions)
the polar duke Polar duke the ice Telling directions
stuck Disposing
in the ice Telling directions
of human wastes L:in antarctica Insects in antarctica Volcanic eruptions