latimes.com / .latimes-com-science / Page 3

The pandemic has left some evidence that viral infection may play a role in reawakening dormant cancer cells already present in a patient's body before infection.

The genre-defying singer-song writer and Santa Cruz native, was one of six killed when two helicopters collided Sunday morning in Brazil.

Nara Organics recalled its baby formula after a California child and two others were sickened by potentially fatal infant botulism, federal officials said.

A new program has boosted patients' health while avoiding painful, costly surgeries. In its four years, only one high-risk diabetes patient has needed an amputation.

Scientists have documented a whale graveyard in the Indian Ocean with some carcasses dating back 5.3 million years, and it's supporting a thriving community of marine life.

Fire officials are bracing for an active fire season in Northern California as high temperatures dry out forests. Southern California will likely see a typical season.

Measure ER isn't enough, according to Dr. Christina Ghaly. She leads LA Health Services, which has joined other California hospitals in lobbying for emergency funds.

The U.S. Justice Department said an investigation by its Civil Rights Division found racial bias in admissions at UC Davis' School of Medicine.

While a plummeting hormone level can trigger depression and irritability, experts say a modest decline can make men more invested, less stressed co-parents.

Scientists feared the Santa Monica Mountains' last endangered steelhead trout were wiped out by the Palisades fire. Then, they found them alive in Topanga Creek.