The 65-foot sub-adult carcass washed ashore earlier this week. Partial results from a necropsy are in.

DALY CITY, CA – A dead blue whale that washed ashore in the Daly City area this week likely collided with a large boat, causing blunt force trauma, officials withe Marine Mammal Center said Friday.

Source and full article: http://patch.com/california/sanmateo/dead-blue-whale-peninsula-likely-hit-ship-marine-mammal-center-says