Elephants are pregnant for up to two years. Females of some fish species starve for weeks while holding dozens of eggs and hatchlings inside their mouths. And pregnant humans commonly endure months of ...

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 ...

New research may help close the nutrition gap between infant formula and human breast milk. The study shows how plants can be programmed to produce a diverse array of beneficial sugars found in human ...