The scent of vanilla has been found to increase arousal in both sexes. The word "vanilla" comes from the Spanish word "vainilla", which is derived from the Latin word "vagina". Vanilla is a member of...
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: Vanilla: an aphrodisiac that stimulates arousal in both genders
Some animals, like snails, have reproductive organs for both males and females, allowing them to fertilize each other's eggs without needing to find a mate from the opposite sex. This is known as...
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: The secret life of snails: how they selffertilize and reproduce
