The Blue Whale is the largest living mammal on the earth. Ten years ago I was delivering a high speed ferry down the inside passage and while overnighting in British Columbia I saw a vertebra from a Blue Whale sitting in someone's yard. I was blown away at how big it was.
While I was in Sitka, Alaska with Bryan in August (2011), we stopped by and visited the Sitka Sea-life Center. When we lived in Sitka (1995 to 2007) the building where the center is was a hatchery for Sheldon Jackson College. Now it is an aquarium. Upstairs they prepare their exhibits and that is where they had a Orca carcass that they were preserving in-order to display it to the public.
The Blue Whale is the largest mammal on the planet. It can grow up to 100 feet long.
Another view of a Blue whale vertebra.
Here is me posing with a rib bone of the Blue Whale.
This photo is of the ear mechanism in a Killer Whale. It is the densest bone in the Orcas body.
After the whale decomposes, it is the last thing remaining.
Here is a close-up of another Orca ear bone.