"The Future of Men: The Vanishing Y Chromosome and the Rise of a New Sex Gene"

The Y chromosome, responsible for determining male sex in mammals, is degenerating and may disappear in a few million years, potentially leading to human extinction unless a new sex gene evolves. Rodents like the spiny rat have already lost their Y chromosome and evolved a new male-determining gene. The discovery of a new sex gene in the spiny rat suggests that humans may also evolve a new sex determining gene in the future. However, the evolution of a new sex determining gene comes with risks, as it could lead to the separation of new species.