Flatworm Reproduces by Using its Penis to Inject Sperm Into its Head
The flatworm resorts to self-insemination when it’s unable to find a mate. How's that for kinky?
Continue Reading http://www.iflscience.comThe flatworm resorts to self-insemination when it’s unable to find a mate. How's that for kinky?
Continue Reading http://www.iflscience.com
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