Linked from
The 8 pages that link to Semen, each with the reason it gives.
Artificial inseminationNarrower topic: It is the material introduced during artificial insemination.
EjaculationNarrower topic: It is the material transported and expelled during ejaculation.
Vas deferensRelated: Sperm transported by the vas deferens become part of semen.
VasectomyRelated: After vasectomy, ejaculation continues but semen usually contains no sperm.