Lizzie Tucker Tight Delight Pure 18 17 Voodoo

The return of light and life to the Arctic and Antarctic, triggering massive thaws and the arrival of millions of migratory animals.

A mother polar bear is shown emerging from her den to hunt with her cubs on the sea ice.

This specific episode became the highest-rated natural history program in the UK since 2001, attracting nearly 10 million viewers.

The episode follows the survival and breeding rituals of several iconic species: