The Antarctic and sub-Antarctic are home to an incredible array of wildlife.
Sounds of Antarctica
Blue whales worldwide produce sounds that are extremely low frequency. Some of the sounds are below the frequency range of human hearing. These sounds can be played back 2–8 times faster than normal to shift the pitch of the sound into a range that is audible for humans.
Seals use a variety of calls underwater during the breeding season, and these are accompanied by the sound of sea ice breaking and cracking. They also make noises above ground, such as breathing and yawning.
Among the wide variety of penguin species are some quite different calls.
Penguins aren't the only birds in Antarctica.