Trivia: In the opening scenes, an uncredited Heather Graham plays the mother of the title characters.
Trivia: When Julius visits Vincent in prison, Vincent calls him "Mr. Universe", a title that Arnold Schwarzenegger held for several years, 20 years previously.
Trivia: Marshall Bell, who plays Mr. Webster, appears to be wearing the same trench coat Arnold Schwarzenegger wore in The Terminator.
Trivia: Mary Ann Benedict mentions she had a child once, but he died at birth. This happened in real life to Bonnie Bartlett (who played Mary Ann). In 1961, she gave birth to a child who died 24 hours later.
Trivia: The singer in the nightclub scene is Nicholette Larson who was famous for the song "Lotta Love" (1979).
Answer: Because the offspring of this experiment was meant to be studied, researched. Mary-Ann showed signs of maternal attachment toward the end of her pregnancy, which the scientists involved felt would hinder the experiment due to her not wanting her baby poked and prodded at all day, every day. So she was told her baby died at birth and she was sent on her way. There was no point even mentioning the second baby since she never knew she was carrying twins in the first place.
Phixius ★