I found this possibility intriguing both from a scientific point of view as well as a sci-fi point of view: there are plenty of books out there on zombies and aliens, but what about ancient viruses that thawed from the ice thanks to global warming?

These images may be considered NSFW.

"Why not try it?"

When I was pregnant with my first child 17 years ago, I had the usual worries compounded by my knowledge as an obstetrician and high-risk pregnancy specialist. I knew first-hand the impact of prematurity and other complications. Like other moms-to-be, I hoped to deliver a healthy baby. As a research physician, I was eager for evidence-based knowledge to make this a reality.