Fifteen species of cranes across four continents fight through predator-filled marshes, extreme weather and thousand-kilometer migrations to find lifelong mates, defend nesting grounds and raise chicks. From Eurasian cranes crossing from Africa into Europe to Japan's sacred red crowned cranes and America's sandhill flocks, the documentary follows the rituals, dangers and fragile survival of birds long seen as symbols of love and longevity. ---- The universe is vast, much like our imagination. In "space and science", we show you various documentaries and highlights from outer space. No matter if stars or planets, meteoroids or black holes, relax and enjoy our content! :) ---- Other channels you might be interested in: criminals and crimefighters: https://www.youtube.com/channel/UCYuXyzwA_w4-c1FJrqOnR0A hazards and catastrophes: https://www.youtube.com/channel/UC5WE_bClugxSVG1ENir8qzg