antarctic seas
Penguins do not have a regular sleep pattern. They sleep when they have the chance to, which can be any time of the day or night, but they do not usually sleep for long periods of time.
There is per se no sea named the Antarctic sea. The Antarctic continent, Antarctica, is surrounded on all sides by the vast Southern Ocean.
Yes it is, the Macaroni penguin lives in the subantartic and the Antarctic peninsula.
yes emperor penguins are one of the seven Antarctic penguins and is one of the only two species that actually live on mainland Antarctica.