Life in the Freezer (1993)

S01E05 The Big Freeze

In the depths of the Antarctic winter, the harsh environment forces nearly all wildlife to flee. However, a resilient group of emperor penguins endures by clustering tightly together against the fierce storms. Meanwhile, Weddell seals cleverly keep openings in the ice, allowing them to dive into the frigid waters below, where fish thrive thanks to their unique blood that contains natural antifreeze.