People looking to pocket some extra cash might ask, "Can I sell my kidney?" These are the parts of your body you can profit ...

They weren’t snakes, of course, but nematodes, also known as roundworms—and, it turns out, they’re the most common ...

A mouse study may pave the way for new approaches to contraception and infertility treatment. Sperm are surprisingly picky ...

A chromosome glitch in beetleweed reveals how genome doubling can drive rapid plant evolution and create new species in real ...

This valuable study reports the conservation of sperm-egg envelope binding by demonstrating successful recognition of the micropyle in fish eggs by the mouse sperm. However, the evidence supporting ...

Tissues consist of a heterogeneous mixture of different cell types, complicating our understanding of their biological ...

A physics-based sperm-screening technique could offer a more accurate at-home test for people trying to conceive ...

Ms. Petrova is a Russian scientist who works in a lab at Harvard Medical School. She told her story through a Times Opinion ...