From LiveScience:
The Secret Language of Whales Revealed
By Abigail W. Leonard
posted: 06 March 2007
Deep below the ocean’s surface, blue whales are singing—and for the first time, scientists think they know why.
Researchers from the Scripps Institution of Oceanography recorded the sounds and say they offer new insight into the behavior of the passenger jet-sized animals.
* Video: Starving Whales
* Audio: Hear Whales Sing
See also here.
Antarctic blue whale video: here.
Decline of Antarctic blue whale led to paradoxical fall in krill: here.
Bryde’s whales in New Zealand: here.
Dear Kitty. Some blog 
The Blue Whale Skeleton
Learn more about the natural history exhibits When the Academy opens on September 27, visitors to the exhibit Altered State: Climate Change in California will see the skeleton of the world’s largest animal hanging over their heads. The blue whale (Balaenoptera musculus) can grow to over 100 feet long and weigh 100 tons. Ironically, it feeds on some of the world’s smallest creatures – tiny shrimp-like animals called krill. Blue whales range throughout most of the world’s oceans, including off the coast of California.
The Academy’s specimen, a male that was found off the coast of Vancouver, British Columbia, weighs over 4,000 pounds and measures 80 feet long. It was given to the Academy in 1915, then buried in what is now the Shakespeare Garden in Golden Gate Park until it was mounted for display in 1917. It remained on view in a large open-sided shed between two Academy buildings until the early 1980s.
The skeleton has been carefully prepared for display once again, and exhibit designers will suspend it from the ceiling later this month.
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