Antarctica today is ice on ice on ice, with a few penguins sprinkled in. But once upon a time, not only was there no ice or snow, yet palm trees, giant crocodiles, noodle mammals and... dinosaurs?

In January, a giant piece of ice broke off from an Antarctic ice shelf, revealing a seafloor ecosystem that has never been accessible to humans.

Under the ice freeze of Antarctica, the water normally remains around minus two degrees. This might sound cold, but compared to the icy surface, it's a balmy and stable climate. However, danger from above can sometimes make its way down to the ocean floor...

The Antarctic region is undoubtedly one of the most remote and inhospitable, yet one of the most beautiful landscapes of the world.

If you’re a penguin or other seabird in Antarctica, there’s plenty of fish (and some seal placenta) to go around. But what do the people eat?

How can you tell the two poles apart? Where are the penguins? What about the bears? The Arctic pole is located in the Northern Hemisphere within the deep Arctic Ocean, while the Antarctic pole is smack in the middle of the ice-covered Antarctica. Camille...

During an Arctic expedition, naval officer Richard Burn makes a very unusual discovery, in this clip from Season 18, "Secrets of Inner Earth."