| May 28, 2014
| 12:43 PM
| Jun 10, 2014
| 7:23 PM
More than two decades after 11-year-old Holly Staker was raped and killed in what became one of Lake County's most contentious prosecutions, DNA evidence from her 1992 case has been matched to a potential suspect in a second slaying that took place nearly...
| Jun 12, 2014
| 4:14 PM
Writers, artists and historians have long pondered what it means to be Mexican. Now science has offered its answer, and it could change how medicine uses racial and ethnic categories to assess disease risk, testing and treatment.
The broadest analysis...
| May 15, 2014
| 2:25 PM
The divers called her Naia, for “water nymph,” because they discovered her teenage remains in a dark, underwater cave in Mexico's Yucatan Peninsula.
She had been hidden there for more than 12,000 years — along with the bones of...
| Apr 16, 2014
| 5:09 PM
A rare occurrence in the earliest days of a pregnancy produces an unusual and mystifying outcome: Identical twin fetuses are conceived of the same meeting of egg and sperm. And despite their shared DNA, one of the twins has Down syndrome (the most...
| Apr 27, 2014
| 4:10 AM
DNA testing has become routine in criminal investigations, and it also has been used to demonstrate that people convicted of crimes are innocent. But its history as a forensic tool is fairly recent.
DNA testing has become routine in criminal...
| Apr 18, 2014
| 11:55 AM
Ex-NFL star Darren Sharper will remain in a Los Angeles jail pending another court hearing next month, the latest development in the ongoing sexual assault investigations against the former safety that stretch across five states.
Friday marked the 38-...
| Apr 19, 2014
| 3:20 PM
How can creatures as different in body and mind as present-day humans and their extinct Neanderthal cousins be 99.84 percent identical genetically?
Four years after scientists discovered that the two species' genomes differ by a fraction of a percent,...
| Apr 29, 2014
| 12:22 PM
Biotechnology company MedImmune said Tuesday it has expanded a bioresearch collaboration it started with the University of System of Maryland.
The Gaithersburg company, a development arm of AstraZeneca, started the partnership with the University of...
| May 8, 2014
| 6:41 PM
After waiting for justice for nearly five years , Jahmeshia Conner’s mother came to court Thursday to see with her own eyes the man accused of violently ending the fifth-grader’s life.
Rene Valentin-Matos had been extradited from a small...
| May 10, 2014
The Times points out many of the flaws in legislation (SB 1381) proposed in the California Senate that would require the labeling of food produced with certain "genetic engineering" techniques ("Base food labeling on fact, not fear," Editorial, May 5)....