In the Altai region of southern Siberia, Russia. It's famous for its hominin remains, including the first samples of what are known as Denisovans. Seems that the cave was the place to be for both Neanderthals and Denisovans back in the earlier Paleolithic period. But no traces of anatomically modern humans have been found.
An international team of researchers from Russia, The UK, Australia, Canada and Germany sifted the cave for bones and artifacts, mapped the stratigraphy, then subjected everything to the best dating methods available. They decided that the Denisovans were there first, arriving as early as 300,000 years ago. They continued using the cave until about 50,000 years ago, a whopping 1/4 million years! The Neanderthals appeared about 190,000 years ago and they used the cave for a hundred thousand years, until about 90,000 years ago. The Neanderthal occupation coincides with the Denisovan occupation, though it isn't entirely clear that they were there simultaneously. It may have been used seasonally (winters in Siberia aren't exactly warm) and maybe some years the Denisovans grabbed it and other years the Neanderthals.
But bones of hybrid Neanderthal-Denisovans do show that the two groups were having sex with each other, which suggests some degree of fraternization.
https://gizmodo.com/neanderthals-and-den...1832195445
An international team of researchers from Russia, The UK, Australia, Canada and Germany sifted the cave for bones and artifacts, mapped the stratigraphy, then subjected everything to the best dating methods available. They decided that the Denisovans were there first, arriving as early as 300,000 years ago. They continued using the cave until about 50,000 years ago, a whopping 1/4 million years! The Neanderthals appeared about 190,000 years ago and they used the cave for a hundred thousand years, until about 90,000 years ago. The Neanderthal occupation coincides with the Denisovan occupation, though it isn't entirely clear that they were there simultaneously. It may have been used seasonally (winters in Siberia aren't exactly warm) and maybe some years the Denisovans grabbed it and other years the Neanderthals.
But bones of hybrid Neanderthal-Denisovans do show that the two groups were having sex with each other, which suggests some degree of fraternization.
https://gizmodo.com/neanderthals-and-den...1832195445