When you were first conceived, you were a single cell. From this basic fact, we can extrapolate a few things, most especially that all the cells that make up your body today came (indirectly) from ...

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

From the moment an embryo starts to take shape, two-way communication is critical for making sure tissues and organs develop ...

Researchers have succeeded in generating high-quality feline embryonic stem cells using sperm and eggs from testes and ovaries discarded during sterilization surgery. As different as they may seem, ...

Orthopedic non-invasive stem cell therapy regenerates damaged tissue rather than just improving symptoms. Autologous stem cell therapy uses cells from your own body, minimizing rejection risks.

Immune cells called B cells make antibodies that fight off invading bacteria, viruses and other foreign substances. During ...