produce and transport semen, which contains sperm release sperm into the female reproductive tract during sex make male sex hormones, such as testosterone Have you ever wondered what the different ...
Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...
A late 1800s image of a gorilla male, albeit one probably not thinking about reproductive senescence How do you check the cardiovascular function of a large gorilla ...
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