Interbreeding between archaic and modern humans been shown that Neanderthal ancestry has been selected against in conserved biological pathways, such as RNA processing. Consistent with the hypothesis that purifying selection has reduced Neanderthal contribution in present-day modern human genomes, Upper Paleolithic Eurasian modern humans (such as the Tianyuan modern human) carry more Neanderthal DNA (about 4–5%) than present-day Eurasians modern humans (about 1–2%). Genes affecting keratin were found to have been introgressed from Neanderthals into modern humans (shown in East Asians and Europeans), suggesting that these genes gave a morphological adaptation in skin and hair to modern humans to cope with non-African environments. This is likewise
In the Skin of a Lion In the Skin of a Lion In the Skin of a Lion is a novel by Canadian–Sri Lankan writer Michael Ondaatje. It was first published in 1987 by McClelland and Stewart. The novel fictionalizes the lives of the immigrants who played a large role in the building of the city of Toronto in the early 1900s, but whose contributions never became part of the city's official history. Ondaatje illuminates the investment of these settlers in Canada, through their labour, while they remain outsiders to mainstream society. "In the Skin of a Lion" is thus an exposé of the migrant condition: