Did Human Pregnancy Evolve Because of an Infection?
16th October 2011
If someone were to tell you that roughly 100 million years ago, our ancestors were infected by parasitic DNA, which copied and pasted itself throughout their genomes—and that this was linked to the evolution of modern human pregnancy—you might assume they were channeling early L. Ron Hubbard.
But this week, in the prestigious journal Nature Genetics, researchers provide evidence for such a theory.