Re: NANFA-- I. captive fish and breeding cycles II. migrations

D. Martin Moore (
Fri, 17 Dec 1999 08:44:19 -0600

> There are many factors that direct birds on their
> journeys, such as the Earth's magnetic field, land
> formations, daylight duration, the polarization of
> sunlight, and even navigating by the stars!

A friend of mine is a grad student in the field of bio-something-or-
other (anyway, it deals with electricity and magnetism). He swears
up and down that it has been demonstrated conclusively that birds
use magnetism to navigate, and that experiments which seem to
contradict this have obvious flaws.

I wonder if he thinks that because it's his field, or because he
understands the subject better than most bird people?



Greater American Freshwater Fishes Resource Site (GAFFeRs):

"Fie on thee, fellow! Whence come these fishes?" - Scheherazade

"Any fish with good teeth is liable to use them." - Wm. T. Innes

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