Eating meat made us human...by giving us bigger brains, better tools, and spoken language. The human need for beef has driven history across the hemispheres, but how did we turn an ancient mega-beast into the cow we have today?
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
Is it possible that plants are smarter than we think? They are among the world's oldest and most successful organisms and represent some of the strangest and longest living life forms on the planet. Stunningly diverse, plants have served us in many critical ways, from providing food, shelter and clothing to life-saving medicine. And yet we know very little about them. A luscious exploration of the natural world, Smarty Plants effortlessly integrates pioneering science with a light hearted look at how plants behave, revealing a world where plants are as busy, responsive and complex as we are. From the stunning heights of Utah's Great Basin Desert to the rainforests of Canada's west coast, Smarty Plants follows lead scientist and ecologist JC Cahill as he treks the green world and discovers that plants are a lot more like animals than we ever imagined. The world he reveals is one where plants eavesdrop on each other, talk to their enemies, call in insect allies to fight those enemies, recognize their relatives and nurture their young.
Across our planet, there are a handful of places that truly astonish, like Mount Everest, the Grand Canyon and Victoria Falls. These wonders seem to have little in common other than - literally - taking your breath away. But they share one other thing: they pose extraordinary challenges for their inhabitants. The second of two documentaries profiling some of the world's most expansive - and inhospitable - landscapes, and the people who live there. A fisherman in Zambia faces off against crocodiles and risks being swept to his death as he tries to make a living above the imposing Victoria Falls, and in the Amazon, a giant fish offers salvation to a hungry family that calls the river home. A boy's future hangs on the outcome of a single horse race in the vast grasslands of the Steppe, and in a European salt marsh, a young man duels with a savage bull in a centuries-old battle of wills.
What changes has the Earth has undergone through the eyes of the puma and leopard? From the almost complete disappearance of American wildlife to the rise of man and the industrialized and urban areas of the modern 21st century. Big cats face numerous threats to their survival.
Lake St. Lucia, Africa's largest estuary lake, is under siege. A series of human missteps have left it cut off from the sea, and the water levels are dangerously low. The wildlife relying on its ecosystem are most affected--from hippos and crocodiles that live on its banks, to exotic birds that migrate from as far as 6,000 miles away. Can they adjust to the new, drier reality imposed on them?
120 metres down off the wild coast of South Africa lives an animal once thought to have been extinct for 65 million years - the coelacanth, locally known as Gombessa. A dinosaur fish, a living fossil, that remains the only link connecting fish to terrestrial tetrapods: its fins contain the beginning of reptile and mammal leg bones! And what about the vestigial lung found at the back of its huge mouth? …
2013 • Nature
At the southern tip of Africa, where two oceans collide, the flat-topped Table Mountain stands guard over a diverse metropolis of cultures and people. Take flight over the Western Cape and discover the breathtaking wonder of this province from above.