A sixth dead gray whale has been found in San Francisco Bay, with the cause of death unknown due to decomposition.

As a sixth gray whale dies this year, researchers are no closer to determining the cause of death for seemingly healthy ...

Necropsies of four of the whales have indicated that one died due to a probable vessel strike, but the causes of death for ...

Taken together, the deaths have raised the specter of past “unusual mortality events” that caused whales to die in higher-than-normal numbers.

Another dead whale was discovered in the waters of the San Francisco Bay, the fifth creature found in the area in less than a month, officials said. The female gray whale drifted overnight on ...

Taken together, the deaths have raised the specter of ... Scientists began observing whales entering the San Francisco Bay around 2016 as they completed their annual migration between Mexico ...

THE CENTER SAID ONE OF THE GRAY WHALE DEATHS WAS A PROBABLE VESSEL STRIKE ... A SMALL PUZZLE PIECE OF THE WHOLE MIGRATION ROUTE IN SAN FRANCISCO. SARAH MCGREW KCRA THREE NEWS.

Scientists began observing whales entering the San Francisco Bay around 2016 as they ... George said that whether the recent deaths could be the start of an unusual mortality event is “still ...