The whales are now headed north. In just the last two weeks, three gray whales have died in San Francisco Bay, one of which ...

Scientists say it's too early to tell how the migratory season will end up for gray whales as they begin to head north toward Washington.

Eastern North Pacific gray whales cruise the Pacific coastline every year as they migrate 6,000 miles north from the Baja peninsula to their summer feeding grounds in Arctic and sub-Arctic regions.

Galway PhD student Seán O’Callaghan develops a novel method for identifying sperm whales using aerial photographs.

The Sausalito-based Marine Mammal Center is probing the death of a female gray whale that washed up on Black Sands Beach in the Marin Headlands.

This migration route exposes the mammals to numerous threats, including busy shipping lanes, abandoned fishing gear, killer ... in the whales and similar adverse effects noted in other Arctic ...

or killer whales, which prey on the young grays. But along with those hazards, the whales have had to contend with less food, linked to warmer Arctic temperatures and an overall decline in sea ice.

“Gray whales migrate past the bay during this season to their traditional feeding grounds in the Arctic,” George said ... Malnutrition, killer whale predation, entanglement and vessel ...