Scientists have developed an experimental way to study how human embryos implant in a uterus, which may provide new insights into why miscarriages occur and how they can be prevented.

At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses gently into the receptive lining ...

Scientists have revealed thepreserved embryos of a 200-million-year-old dinosaur species. Using a state-of-the-art particle accelerator, researchers were able to scan the fossils and create detailed ...

Two-headed snakes sound like a story out of mythology, but it rarely happens in nature. Read here to learn more about why this happens.

Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the ...

Studying one of the simplest animals, Stanford's Prakash Lab uncovered how it folds itself into complex shapes—revealing new ...

Snakes have intrigued scientists for centuries. Studying these serpents has offered clues into their bodies, venom chemistry, ...