For the first time, researchers have succeeded in developing an artificial DNA base pair that is based on a different chemical force than natural genetic material. While the common natural DNA building blocks are held together by hydrogen bonds,

Nancy Guthrie was taken from her home in Tucson, Arizona, more than two weeks ago and remains missing. Authorities have yet to publicly name any suspects or persons of interest as they investigate recovered DNA.

A DNA expert believes the kidnapper "will be identified” through investigative genetic genealogy after an unknown person's DNA was recovered at Nancy Guthrie's home.

"How is this guy a Pit Bull????” the dog owner said in a viral Threads post.

Investigators continued following leads after DNA evidence from gloves believed to have been worn by Nancy Guthrie's abductor didn't yield results.

It's been nearly two weeks since Nancy Guthrie, "Today" show anchor Savannah Guthrie's mom, was last seen, as the search to find her intensifies.

Ghost lineages reveal themselves through ancient genes that still exist in living beings today.

"I’m just glad justice was finally done," sister Linda Galpin said. "I always said it would never happen in my lifetime."