Whales in the Northern and Southern Hemisphere do not interbreed because
their reproductive cycles are 6 months out of phase. This means there is
restricted gene flow between the two and so differences could occur but all
of the sources I checked gave a single description for humpbacks in the
northern and southern hemispheres. Different stocks of whales do have
regional song 'dialects'.
From: Ms. Slyk <email@example.com>
To: firstname.lastname@example.org <email@example.com>; firstname.lastname@example.org
Date: Wednesday, April 10, 2002 1:09 PM
Subject: humpback whales
>I have a question about humpback whales. What is the difference between
>Southern and Northern Humpback whales in appearance.
This archive was generated by hypermail 2b30 : Mon Aug 19 2002 - 10:33:04 EDT