Antarctica is a land of extremes. Its harsh winds, icy landscapes, and bone-chilling temperatures seem like an environment where life shouldn’t exist. Yet, somehow, a handful of animals not only ...

Winter in Antarctica is long and dark. Temperatures remain well below freezing. In many places, the sun sets in April and does not rise above the horizon again until August. Without sunlight, ...

Susan Rigetti is author of three books and a former editor at The New York Times and Slate. She is a contributing Globe Opinion writer. Emperor penguins have existed in Antarctica for more than 40 ...