Xref: utzoo sci.bio:980 sci.misc:948 rec.birds:470
Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pacbell!att-ih!ihnp4!ihlpa!cutler
From: cutler@ihlpa.ATT.COM (Herber)
Newsgroups: sci.bio,sci.misc,rec.birds
Subject: animals and Earth's magnetic reversal
Message-ID: <7387@ihlpa.ATT.COM>
Date: 14 Mar 88 15:23:52 GMT
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 7


Scientists, or those who profess to know such things, indicate that
the earth has reversed it's magnetic polarity many time is the past.
 Has anyone given thought on the resulting effect this might have on
animals, migratory birds in particular, that use this field for 
whatever purposes?  Will Northern hemisphere birds migrate north
in the winter?  Are there any indications of specie disappearance during
these times?