Seems very Star Trek Enterprise when they polarize the hull plating. "To prevent this from happening, once a sperm cell has made contact with it, the egg quick

Seems very Star Trek Enterprise when they polarize the hull plating. "To prevent this from happening, once a sperm cell has made contact with it, the egg quickly employs two mechanisms. First, its plasma membrane rapidly depolarises – meaning it creates an electrical barrier that further sperm cannot cross."