> Why is upthrust important to whales?
"Upthrust" as you call it is important because it is what maintans the
whale's body at depth so they don't sink.
> Why are they in trouble when beached?
Primarily because when beached, they are lying on their lungs and can
(and many times do) asphyxiate.
Peter M."Skip" Scheifele LCDR USN (Ret.)
Director of Bioacoustic Research, University of Connecticut NURC NA&GL
(Voice) 860-405-9103/9121; email@example.com;
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