Why isn't it "do you all want to work in Antarctica?" ?
I guess because in English You can mean one person or many without needing anything to be added.
Is it just me or is he saying Cá not Các?
why is the co there?
Is it common to use the plural "Các" when speaking to more than one person?
No. There is just one personal pronoun using "các". That is plural you/you all - "các bạn". You can see it in the personal pronoun chart in this Tips Notes.
Thanks for that
From Chinese 南極
Nam Cực = south pole
Châu Nam Cực
= The continent of south pole