At critical moments in history, our second place metal was the most important metal on Earth. Big History reveals how silver's place in our minds was determined by the heat of exploding stars, and how this one metal saved democracy.
Following 161 84 views About Export Add to From the Great Pyramid at Giza to the towering skyscrapers of today, humans have engineered massive constructions for at least 5,000 years. But why? How do biology and human emotions affect our desire to build gigantic structures?
2013 • Nature
Metamorphosis seems like the ultimate evolutionary magic trick - the amazing transformation of one creature into a totally different being: one life, two bodies. From Ovid to Kafka to X-Men, tales of metamorphosis richly permeate human culture. The myth of transformation is so common that it seems almost pre-programmed into our imagination. But is the scientific fact of metamorphosis just as strange as fiction or... even stranger? Filmmaker David Malone explores the science behind metamorphosis. How does it happen and why? And might it even, in some way, happen to us?
2013 • Nature
The squirrel family is one of the most widespread on earth, so what is the secret to their success? There are squirrels that can glide through the air, outwit rattlesnakes and survive the coldest temperatures of any mammal. We uncover the extraordinary abilities of these cheeky characters, putting their problem solving to the test on a specially designed assault course. We team up with some of the world's top squirrel scientists who are making groundbreaking discoveries - from the fox squirrel who can remember the location of 9,000 nuts to the grey squirrel whose tree-top leaps are the basis of new designs in robotics. We also see the world through the eyes of an orphan red squirrel called Billy, as he grows up and develops all the skills he will need to be released back to the wild. It is time to meet the animal family we should never underestimate - the super squirrels.
Meet Hope, an orphaned baby moose being raised by a goat. Nearby, watch three unruly baby raccoons cause havoc between meal times. These are some of the adorable inhabitants of Park Omega, Quebec--a place where threatened animals get a second chance.
The giant panda gives birth to the smallest baby of any mammal and has to care for and protect it for many months. Why don't they give birth to more developed, robust young? The kiwi lays one of the largest eggs in the bird world, which produces a very well-developed chick. Why do kiwis produce a single egg that is a quarter of its body mass and almost too big to lay?
At the start of his journey, Attenborough meets some of the people and animals that have made their home along the river in Zambia. He is invited to witness the Kuomboka festival, featuring the Litunga, chief of the Lozi people of western Zambia, and his people. In the festival they migrate from Lealui to Limalunga, before Lealui is flooded by the Zambezi. The spectacular ceremony consists of a fleet of barges, many containing the Lotunga’s possessions, making the journey up the river accompanied by heavy drumming of the royal Maoma drums. Other highlights include David Attenborough joining the Litunga as he opens the court and presides over the inauguration ceremony.