A man in his early 20s has received the world's first sperm-making stem cell transplant in a new procedure that could be groundbreaking for infertility treatment. Until now, the procedure had ...

A study from University of Michigan researchers has uncovered the mechanism behind the arms race for mouse X and Y bearing sperm to fertilize an egg, analogous to space races to reach the moon. “The X ...

Apr. 9, 2025 — A new study has found that certain bacteria living in the nose may influence how likely someone is to get a COVID-19 infection. The research reveals ... Lactic Acid Bacteria Can ...

Stem cells are cells that have the capacity to self-renew by dividing and to develop into more mature, specialised cells. Stem cells can be unipotent, multipotent, pluripotent or totipotent ...

A fuel cell is a device that generates electric energy through electrochemical reactions between an oxidizing agent and a fuel – a material that stores energy in chemical form. Both species are ...

For sex sorted semen, the ability to shift the gender ratio of a calf crop comes from the fact that gender is determined by the sperm cell that fertilizes the egg. Sperm cells that result in a heifer ...