The 2019 March for Life will focus on the role of medical and technological advancements in affirming the anti-abortion movement, organizers announced Thursday, a theme that touts science to bolster the anti-abortion argument.

“Science is behind the pro-life movement,” said Jeanne Mancini, president of March for Life, in an announcement for the theme — “Unique from Day One: Pro-life is pro-science” — for the January anti-abortion march.

“We see that medical and technological advancements always affirm the pro-life movement," she said. "For example, DNA is present at fertilization and no fingerprint on earth, past, present, or future, is the same.”

The 46th annual march will take place on Jan. 18, the anniversary of the Supreme Court’s 1973 ruling in Roe v. Wade, which made abortion a constitutional right.

The theme is the latest instance of the anti-abortion movement using new studies on fetal development to advance their case for restricting abortion.

Mancini called for legislation that preserves “the dignity of the human person from its earliest moments.” Specifically, the Patients First Act of 2017, which would prevent federal funding from going toward research of stem cells derived from human embryos.

Anti-abortion groups have also argued that newer research supports their case for banning abortion after 20 weeks. The Senate voted on, but failed to pass, a 20-week abortion ban in January.

The March for Life also announced Thursday that Ben Shapiro, host of the popular podcast “The Ben Shapiro Show,” and Abby Johnson, of the anti-abortion group And Then There Were None, would speak at the event.

During the 2018 march, President Trump livestreamed an address to the event from the Rose Garden of the White House, and numerous Republican lawmakers attended.