The thousands of emperor penguins gather on the frozen wastes of Antarctica to face the coldest and cruellest winter on Earth.
The powerful lioness, abandoned by her male protectors, leads her family against the gravest dangers of the African savannah and the tigress in the jungle of India attempts to raise her family under ever-growing pressure from her rivals and humanity.
These are some of the animal tales told in British natural historian David Attenborough's new series, Dynasties, screening from tomorrow at 7pm on TVNZ 1.
Each of the five episodes takes you to a new animal habitat and profiles one of our most celebrated and endangered animals, each fighting against the odds for its survival and the future of its family.