During the past 3,000 years, an area in Antarctica is home to 1.5 million Adélie penguins that humans do not know.
Antarctica is a land with a lot of peculiar features, including stories
The oceans are under attack, many fisheries are on the verge of collapse and 90% of large fish are over-exploited.
Most researchers think penguins have low visibility in the dark so they don't swim in the water when night falls.
According to the BBC, the land of Terre Adelie, the territory of Adelie penguins, witnessed the deaths of more than 36,000 newborn penguins.