Courtesy Frieda Birnbaum
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Frieda Birnbaum, 65, of Saddle River, N.J., has five children, including two 5-year-old twin boys. She says she feels more energetic now than she did her in 20s. <a href="http://abc.go.com/watch/2020/SH559026/VD55229389/2020-831-extreme-parenting"><b>CLICK to watch full story on "20/20"</b></a>
    Courtesy Frieda Birnbaum
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Birnbaum was 60 when she gave birth to the twins, named Josh and Jarrett, making her the oldest American woman to give birth to twins.
    Courtesy Frieda Birnbaum
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Birnbaum's middle child Ari, now 12, tells friends that his parents are "very old."
    Courtesy Frieda Birnbaum.
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Birnbaum gave birth to Ari when she was 53.
    Courtesy Frieda Birnbaum
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Frieda Birnbaum and her husband Ken at their wedding. The couple has been married more than 40 years.
    Courtesy Frieda Birnbaum.
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    Birnbaum became a mother for the first time at the age of 26 with the birth of her son Jaeson.
    Courtesy Frieda Birnbaum
  • Frieda Birnbaum gave birth to twin boys when she was 60.

    She had her second child, daughter Alana, at age 30. She said she began feeling the urge to have more children when she was in her late 40s. <a href="http://abc.go.com/watch/2020/SH559026/VD55229389/2020-831-extreme-parenting"><b>CLICK to watch full story on "20/20"</b></a>
    Courtesy Frieda Birnbaum
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PHOTO: Elephants perform at the Ringling Bros. and Barnum & Bailey Circus, at the Amalie Arena in Tampa, Fla. in this Jan. 3, 2015 file photo.
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