“That genetic traces of the original population disappear completely is unusual, especially in South America,” said geneticist Andrea Casas-Vargas of Colombia’s National University in a ...

South America is a continent of breathtaking contrasts, where towering mountains meet dense rainforests, and arid deserts ...

A drought, brought about by the El Niño weather pattern, has upended life in several South American cities this year, with consequences that include water rationing and power cuts as well as ...