(Reuters) - Trail-blazing space reproduction research that yielded healthy baby mice produced using freeze-dried sperm stored for years in orbit is showing the possibilities of procreation beyond ...

A research essay published in PLoS Biology suggests that “selfish chromosomes” identified in mammals could explain why so many human embryos are lost early in pregnancy. Getting pregnant and ...

In humans, the energetic cost of pregnancy is about 50,000 dietary calories — far higher than previously believed, a new study found. By Carl Zimmer It takes a lot of energy to grow a baby — just ask ...

Thirty-one years after her birth via external fertilization and embryo transplantation, Zheng Mengzhu, China's first test-tube baby, gave birth on Monday in a Beijing hospital. At 8:34 a.m., Zheng ...