As the search for Nancy Guthrie hit its 50th day Sunday, leaving the local sheriff desperate and humiliated, a legendary cold ...

The okapi is one of the rainforest’s most mysterious mammals. At first glance, it looks like someone stitched together a ...

Boilermakers fans were critical of Seth Davis for his pick proven wrong after Purdue beat Miami. Here's what he thinks of the Sweet 16 game vs Texas.

A new study reveals all five fundamental nucleobases—the molecular "letters" of life—have been detected in samples from the ...

Convicted murderer Tommy Zeigler’s attorneys based a clemency hearing on DNA evidence, but that approach was unlikely to set Zeigler free.

Scientists are exploring DNA-based robots, tiny molecular machines that could one day navigate the body, deliver targeted therapies, and even build nanoscale technologies.

A new study reveals that farming in Argentina’s Uspallata Valley was adopted by local hunter-gatherers rather than introduced by outside populations. Centuries later, a stressed group of maize-heavy ...

A veteran cold case detective says the search for Nancy Guthrie may still be cracked by DNA, even after 50 days without an ...

Nancy Guthrie's family asked Tucson residents to review camera footage and notes as the search for the missing 84-year-old ...

Sunday marks Day 50 in the search for Nancy Guthrie, the 84-year-old mother of NBC "Today" show host Savannah Guthrie, as we ...

Savannah Guthrie's family renewed their plea for answers in the disappearance of their mother, Nancy, in a new, deeply ...

Goats tell us how human values changed through time by showing how and where we moved animals through trade or migration.