Add Yahoo as a preferred source to see more of our stories on Google. (L-R) Savannah Guthrie and mother Nancy Guthrie on June 15, 2023. (Nathan Congleton/Getty Images) Arizona authorities say they are ...

(CNN) — For three decades, the abduction, rape and murder of 8-year-old April Tinsley in April 1988 had frustrated Indiana investigators. The mysterious killer's taunting messages admitting to the ...

In the central Sahara, where sand now buries ancient lakes, scientists have pulled genetic material from 7,000-year-old mummified women and found DNA that does not match any living population. The ...

To many working biologists, DNA-modifying enzymes are tools, not unlike a pair of molecule-sized scissors. To Dr. Barry Stoddard, a professor in the Basic Sciences division at Fred Hutch, these ...