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Scientists invent 3D-printed penis implant to restore erections — and it works in rabbits and pigs

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Scientists 3D-printed a model penis using a special type of hydrogel that became erect just like a natural one.

They then implanted parts of the model penis into rabbits and pigs with erectile issues.

After only a few weeks , the animals were able to mate and reproduce.

Technology could one day be used to help humans with penis injuries and erectile dysfunction.