Thirty-six years after Tracy’s death, the sheriff’s office used lab data to identify John Guillot Jr. as her killer. Genetic genealogy, a combination of DNA analysis and family tree research ...

Target identification is the process of identifying the direct molecular target – for example protein or nucleic acid – of a small molecule. In clinical pharmacology, target identification is ...

Professional appraisals. You can find an appraiser for almost any item, whether it's an antique Greek vase or a Richard Simmons autograph. The key is finding one who's accredited and meets ...

They’ve been here 300 million years. They grow on rock, or in deserts, or underwater, or on dead animals—and they can survive ...

While it's hard to identify the birds by sight, listening to their idiosyncratic calls is a comparatively reliable way to tell them apart. Photo shows A profile image of a man wearing glasses a ...