Subject: Blows

Michael Wiliamson (
Sun, 09 Mar 1997 10:05:40 -0500

What is happening when a whale spouts water from its 
blowhole? Is it ejecting water from its lungs, or is it a 
result of exhaling which turns the water on the blowhole 
into an aerosol?
Thanks for any info.


There is no water in the lungs.  Whales are mammals like us.  
What would happen to you if you had water in your lungs?  
The blow is made up of two basic ingredients.  Some is water 
pushed into the air by the blow, especially if the whale 
starts to blow just before it surfaces, but most of the blow 
is just moisture that condensed from moisture in the whales 
exhaled breath.  Much like you when you exhale on a cold 
damp day or exhale onto a mirror.

Mike Williamson

     J. Michael Williamson
 Principal Investigator-WhaleNet <>
 Associate Professor-Science
 Wheelock College, 200 The Riverway, Boston, MA 02215
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