Yes, no country owns Antarctica. Why?
There are no permanent residents in Antarctica. Only researchers go there for a few months a year to conduct various studies.
On average, Antarctica is the coldest, driest, and windiest continent and has an annual precipitation of 200 mm (~8 inches) which makes it considered a desert. Its humidity level is lower than Gobi desert's!
90% of ice on Earth is in Antarctica and it also represents 70% of the fresh water.
Only cold resistant species survive the conditions there, such as penguins, mites, seals and many kinds of algae.