According to results of the necropsy, an autopsy on animals, Mama, the Klamath River whale, died from a skin infection.
Here are two links to the full story, both of which used my images of Mama and her calf:
For copies or use of these and other images, email: firstname.lastname@example.org
View my website: www.ashalaTylor.com and http://www.flickr.com/photos/ashala
Many more Mama, the Klamath River whale, images can be seen on those sites.