When discussing fertility preservation options among transgender patients, it is critical to keep barriers to access in mind.

When Marcia Donziger, 54, was first diagnosed with stage 3 ovarian cancer, she was waking up from surgery 27 years ago. "At the time, I was newly married, ready to start a family," she says.

To determine baseline rates of meiotic aneuploidy and structural imbalances before mitotic cell division, the authors examined fertilized oocytes, which showed a low level of aneuploidy 7.

For decades, scientists have known that platypuses and echidnas – Australia’s unique egg-laying mammals – have another ...

Human–animal chimaeras are an exciting yet challenging area of research. Human cells are coaxed to grow in animal embryos, allowing researchers to study human tissue development. But the long-term ...

Low iron levels can flip the genetic switch on a mouse's sex during development, causing XY embryos to grow female features.