Under ideal conditions, sperm lives for days after ejaculation from intercourse. This article examines sperm motility and how ...

Surprisingly, this occurs right within our bodies. Human sperm cells have unique characteristics, with a peculiar blob-like head and an extraordinarily long tail. Despite their appearance ...

Successive academic studies and anecdotal evidence point toward increased cancer risk from smoke exposure among wildland firefighters. But an upcoming study from Colorado State University aims to ...

Specialised animal cells include red blood cells, sperm, eggs, nerve cells, muscle cells, ciliated cells, and villi. Get it, lark? Anyone…? Okay let's move on. An animal cell is made of three ...

The sperm portion of that cocktail consists of developed or mature male sex cells that can fertilize a mature female sex cell ...

Here’s how it actually works: Pregnancy occurs when a sperm cell from a man meets and fertilises an egg from a woman. This ...

Even if sperm and eggs are created from human iPS cells, the science ministry’s guidelines on basic research prohibits them from being used for fertilization.