X and Y Chromosome

The Y chromosome, which contains the male-determining gene in humans and other mammals, is degenerating in the human species and may cease to exist after a few million years. This would lead to extinction unless humans evolve a new...

A spiny rat  that has lost its Y chromosome has been discovered by researchers in the Amami Islands. The finding could reveal the future of human genetics. The rattus - its scientific name - from the island in the Ryukyu archipelago of...