Available on Disney+
S1, E5: Migrations are ticking clocks: every day, countless animals must move or die, driven by changing seasons and a changing climate. They are racing to reach their destination, before it's too late to breed, feed or simply stay alive. This episode looks at a range of animals from walruses and whale sharks, and zebras and orang-utans, to pronghorn and plankton.
Documentary · 14 Nov 2010 · 45 min