Two weeks after scientists confirmed the first-ever outbreak of avian influenza, or bird flu, in elephant seals along the ...

Wildlife authorities confirmed Thursday that nine more elephant seals, a sea lion and an otter have died from bird flu at Ano ...

After H5N1 bird flu was detected in elephant seals gathered at Año Nuevo State Park, other marine mammals have also succumbed, including a sea otter and sea lion. So far, only animals in San Mateo ...

Scientists estimate more than 60 marine mammals may have been infected by the virus.

The cluster of infections appears confined to an area of San Mateo County, and no cases have been detected at Point Reyes National Seashore.

Research has confirmed that avian flu has been detected in both a dead southern sea otter and a dead sea lion.

Following news this week of a southern sea otter's death from avian flu, experts are now saying the disease's outbreak has infected more species of marine mammals along the San Mateo County coast.

Scientists found that Australian sea lion pups may learn how to hunt by watching their mothers during ocean foraging trips.

Experts are closely monitoring the marine animals, flagging mortalities and advising beach visitors to take extra precautions. Meanwhile, a Sonoma County poultry facility was struck by bird flu in ...

The avian flu outbreak that killed 30 elephant seals at Año Nuevo State Park last month, resulting in its partial closure and canceling tours for the season, has spread to at least two other marine ...

The snake bit him near the Quail Hill Community Center, the start of an approximately 2-mile trail, according to the Orange ...

SACRAMENTO — The Trump administration ramped up a battle with California over the state’s nation-leading vehicle-emission ...