* Lie in the subcutaneous fat near the penis and open into the prepuce.
* Lie in the subcutaneous fat near the penis and open into the prepuce.
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* Sebacious glands that secrete a pheromone used for scent marking.
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* Sebacious glands that secrete a [[Reproductive_Behaviour_-_Attractivity_Behaviour_-_Anatomy_%26_Physiology#Pheromones|pheromone]] used for scent marking.