Mosquitoes haven’t always had a taste for human blood — partly because the tiny yet dangerous insects have been around a lot longer than humans.

Authorities are analyzing biological evidence in the search for Nancy Guthrie nearly three weeks after Savannah Guthrie's mom ...

We wanted to see if Ancestry can actually reveal a person’s family history and what records were available in its database, ...

DNA testing has ruled out a glove found near Nancy Guthrie's Tucson home as a lead in her disappearance, linking it instead ...

Savannah Guthrie visited the 'Today' show studios amid the search for her missing mother Nancy Guthrie. Here's where the ...

Amid the search for Savannah Guthrie’s mom Nancy Guthrie, the Pima County Sheriff’s Department confirmed that DNA-laden ...

A legal expert has raised several questions about the disappearance of Nancy Guthrie, pointing to key details she says “don’t ...

Authorities have made no arrests, nor have they publicly identified a motive in a baffling case that has captured the ...

An audit of the Colorado Bureau of Investigations’ DNA evidence testing took a deep dive into the work the agency is doing to ...

New research that decoded the evolution of mosquitoes’ feeding habits from DNA could shed light on the murky timeline of prehistoric human ancestors.

Pima County Sheriff Chris Nanos shared the latest on the case as the search for Savannah Guthrie's mother entered its 41st day.