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).

Oct 19, 2025 · Where Is Sperm Produced? Sperm are produced in the testicles. This happens within tiny tubes called seminiferous tubules. It’s an ongoing process, as the testicles make sperm nonstop.

Dec 26, 2025 · Sperm, male reproductive cell, produced by most animals. In higher vertebrates, especially mammals, sperm are produced in the testes. The sperm unites with (fertilizes) the ovum …

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.

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

Jul 26, 2025 · Human sperm are microscopic biological cells, specialized for a singular purpose. These tadpole-shaped cells are the male reproductive gametes, playing a fundamental role in sexual …

Mar 11, 2025 · Having healthy sperm is an important part of fertility. But a variety of factors can affect sperm health. Learn about steps to take, as well as things to avoid, to keep sperm healthy and …

Jun 3, 2024 · 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.

A spermatozoon or spermatozoan (pl. spermatozoa), from the ancient Greek σπερμα (seed) and ζων (alive), is more commonly known as a sperm or sperm cell.