000-years-ago

The Current16:20Huge ancient city discovered in Amazon"Wow" was all archaeologist Stéphen Rostain could say when LiDAR (light detection and ranging) laser technology revealed several ancient cities hidden deep in the Amazon rainforest."It's a gift for an archaeologist," he told The Current's Matt Galloway. Using the laser-scanning technology, researchers have uncovered a complex network of farmland, roads and neighbourhoods in Ecuador's Upano River Valley.The cities are believed to be between 2,000 and 3,000 years old,…

As It Happens6:35How scientists tracked the 1,000 km journey of a woolly mammoth using its tuskWith nothing more than a tusk, researchers were able to track the 1,000 kilometre journey of a woolly mammoth that lived 14,000 years ago. "The fact that we can actually regenerate her movement, her place along a landscape … all comes from a few remains at this site gives us insight into behaviour of an animal that once existed and lived with ancestors of the first people here in Canada," Hendrik Poinar, an evolutionary…

Quirks and Quarks18:53Unearthing a small-brained hominid species that challenges human exceptionalismIn 2013 renowned paleoanthropologist Lee Berger sent a couple of cave explorers into a cave system in South Africa to see what they could find. Little did he know they’d return with photos of fossilised hominid remains that would upend everything we thought we knew about what makes us special. He and his colleagues discovered an entirely new species of ancient human relatives, called Homo naledi, that lived a few hundred…

For thousands of years, a breed of white, woolly dog played an important and cultural role for Coast Salish people in Western Canada but when colonists moved in the animal quickly became extinct, a new study says.It started with a dog named Mutton that died in 1859. Its pelt had been in a collection at the National Museum of Natural History, Smithsonian Institution in Washington, D.C.DNA analysis on the pelt, coupled with traditional knowledge from the Coast Salish people, provided new insights on the dog once bred for…