The explorer is Ann Bancroft.
Latitude maps include both the Arctic and Antarctic Circles.
they are both hot.
their both cold
Yes and no. The Polar regions include both the Arctic and the Antarctic.
Humans, terns
Yes to both.
Both the Arctic and the Southern Ocean are polar oceans.
Yes. Both.
No Narwhals only exist in the Arctic. The Southern Ocean is too cold for these animals.
Arctic and Antarctica have seals, birds, whales, fish, and krill.
No. Boston, Mass in the USA is closer to the Arctic Circle than to the Antarctic Circle. Boston and the Arctic are both in the Northern Hemisphere: Antarctica is in the Southern Hemisphere.
Both these lines of latitude are about 66 degrees.