The story of Peru's drug 'mules' - the youngsters who hike cocaine from a tropical valley up to highland towns in the Andes, and out towards the border with Brazil.

High in the Andes Mountains of Argentina and Chile, mining companies are scouring the landscape to look for copper, gold, lithium and cobalt deposits, among other lucrative ores. Most of these metals ...

In 2022, researchers collected caterpillars off a plant in the arid highlands of the Andes Mountains of Chile, then patiently waited to see what they became. Two months later, adult moths ...