Temperature is key: Temperature and media to preserve is key! sperm ejaculated into a woman's vagina can live in a woman's cervical mucus for three to five days. Sperm ejaculated outside the body might survive in semen up to a few hours. It can be preserved for weeks when semen is stored at a lowered temperature or years when frozen (cryopreservation).
Answered 2/7/2019
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