BBC The Living Planet The Sky Above & Sweet Fresh Water Dvdrip Xvid - Mvgroup
English | AVI | Mpeg4 | 512 x 400 | 00:54:11 | 29.970 fps 1675 kbps | MP3 128 kbps 48 KHz | 1,2GB
Genre: Documentary

7. “The Sky Above”
Broadcast 8 March 1984, this episode deals with the air and those creatures that spend most of their lives in it. Attenborough begins in NASA’s gravity research aircraft to illustrate the effect of weightlessness. There are surprisingly many plants whose seeds are, in effect, lighter than air. Gossamer is the animal equivalent, spun by tiny spiders. Only the very smallest plants and animals can defy gravity, but some seeds, such as those of the sycamore, cheat this by simulating the movement of a helicopter. Many creatures are expert gliders, such as the flying frog and some species of lizard. However, those that live at grass level must use powered flight, sometimes aided with a leap, as with the grasshopper. Attenborough observes albatrosses in South Georgia exploiting the air currents above cliffs to glide all day. Heavy birds like vultures wait for the land to heat up and provide thermals before they attempt any lengthy flight. The techniques of diving birds, such as the gannet or the peregrine falcon, are shown. Migratory birds are also explored in detail, and a multitude assembles above Panama each autumn. The red-breasted goose migrates entirely overland, and so can stop for fuel every night — unlike those that cross the open ocean. Finally, Attenborough ascends 6.5 kilometres into the atmosphere in a hot air balloon. It is this space that contains the Earth’s weather, and satellite imagery is used to illustrate the formation of hurricanes and tornados.
8. “Sweet Fresh Water”
Broadcast 15 March 1984, this programme focuses on fresh water habitats. Only 3% of the world’s water is fresh, and Attenborough describes the course the Amazon, starting high up in the Andes of Peru, whose streams flow into the great river. Young rivers are by nature vigorous and dangerous: they flow fast and form rapids, thick with mud and sediment. They accumulate sand and gravel en route, and this erodes all but the hardest surrounding rocks. The Yellow River of China carries the most sediment of any river. By the time it has settled down and fallen over its last cascade, the water becomes tranquil and rich with nutrients from its banks. It begins to form lakes, and where the water flows into basins created by geological faults, they can be immense. When water reaches such areas, it loses its impetus and drops its sediment, potentially making it very fertile. Lake Baikal in Russia is the deepest: 1,500 metres. In addition, 80% of its inhabitants are unique, including the Baikal seal. There are many examples of creatures that thrive in such an environment. Predators lie in wait above the surface (kingfishers), below it (turtles), on it (water boatmen), and at its edge (fishing spiders). In its final stages, a river’s tributaries are liable to burst their banks and flood. However, some have made a virtue of this: the Marsh Arabs of Iraq construct their buildings on rafts of reeds. This allows fish, pelicans and humans to flourish in a single community.



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