How the Blue Whale Eats Whatever It Wants   Studying the world's
largest animal, the blue whale, has been challenging to say the
least, but scientists now know more about how this huge species
feeds.  A study published in the latest issue of Nature reveals
that these whales and their other big relatives have a special
sensory organ in their jaws that controls eating.  The discovery
sheds some light on how blue whales can fuel their impressive
girth. They grow up to 110 feet in length and weigh about
300,000 pounds. The heart alone is the size of a small car.
NEWS: Blue Whales Keep Getting Bigger  Whales could eat a
person, as the biblical story of Jonah and the Whale suggests.
But thankfully whales, even killer whales, don't crave us and
would prefer to consume other things. The primary chow of blue
whales is actually minute krill and tiny crustaceans known
as copepods. Lots of them.  To do this, blue and other rorqual
whales feed by lunging and gulping substantial volumes of prey-
laden water, a process that