Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one).

Jul 25, 2024 · Sperm are male reproductive cells. They look like tadpoles. Males start producing sperm around puberty. They can fertilize an ovum.

Feb 17, 2026 · This article explains what sperm are, including their types and composition, their role in reproduction, and how many sperm cells are needed to achieve pregnancy.

Mar 4, 2020 · Sperm are male reproductive cells that are one-half responsible for creating life. Read on to discover some facts about sperm and male fertility.

Dec 16, 2025 · Discover how sperm cells develop, their intricate anatomy, crucial roles in reproduction, and common diseases affecting male fertility. Visual guides included.

Jan 9, 2024 · Explore the Fascinating Process of How Sperm Is Created in the Male Body. Learn About the Biology Behind Male Fertility and the Stages of Sperm Development.

Jun 14, 2025 · There are huge gaps in what we know about sperm, from how they navigate to why sperm counts are tumbling. The BBC unravels why we know so little about this perplexing cell.

Jun 13, 2018 · When a man is stimulated for sexual activity, the sperm are mixed with seminal fluid — a whitish liquid produced by the seminal vesicles and the prostate gland — to form semen.

Jul 19, 2025 · Sperm are the male reproductive cells, each carrying half of the genetic information required to create an offspring. Their purpose is to travel to and fuse with a female egg cell, a …

Learn all you need to know about sperm, including what it is, how fertilization works, and how sperm motility affects male fertility in our Guide to Sperm.