Answer:

antarctic

Answer	Crossword Clue
ANTARCTIC	South Pole continent, with "the"
ANTARCTIC	Admiral Byrd's favorite hibernation spot.
ANTARCTIC	Site of Little America.

ANTARCTIC	Where Bay of Whales is.
ANTARCTIC	Penguins' home.
ANTARCTIC	Scene of a proposed colony.
ANTARCTIC	Locale of the Ross Sea.
ANTARCTIC	Locale of Sir Edmund Hillary's latest feat.
ANTARCTIC	Region of the penguins.
ANTARCTIC	Icy area
ANTARCTIC	Hill dweller's overshoe?

ANTARCTIC	Region Byrd explored
ANTARCTIC	South Pole region
ANTARCTIC	One of the five major circles of latitude
ANTARCTIC	Pole position?
ANTARCTIC	Far south?