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 ...
Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the ...
Scientists in China uncover crystal-filled dinosaur eggs, revealing a glittering twist in prehistoric life and evolution.
A woman’s routine ultrasound reveals a shocking growth inside her body—hair, teeth, and more—raising questions about dermoid ...