Unless there is some kind of background investigation, or security clearance procedure that you must go through, I do not believe so.
Another Answer
Since science is conducted on the continent by governments representing 80% of the earth's population, you could probably find a job with a government other than the United States. Citizenship in that country may be a requirement for employment, however. Or, you could have a specialized skill or expertise that a particular scientific question required in order to be investigated, in which case your citizenship in your country must be in good standing.
Security clearances, background checks, drug tests, physical exams and for winter-over personnel, a psychological evaluation, may all be required.
Yes a Zambian citizen can marry a Us citizen and work in the us because the zambian citizen can obtain a citizenship by marriage and automatically become a citizen of us and is allowed and qualified to work there.
yes through paper work and then you are welcome to come to the us as a us citizen.
This is not a good idea. These are wild animals in their habitat. If you are a US citizen, it is a felony to do so.
You go to immigration and start the paper work.
Yes.
If you're a US citizen, then you are. If you're not a US citizen and aren't 100% certain the answer is yes, then the answer is no.
NOPE
yes
yes
Antarctica has no national currency, while the US currency is broadly recognized as a currency benchmark for work economics.
She would need a UK work visa.
the US citizen shouldn't