birding-aus

Why don't birds get pregnant?

To:
Subject: Why don't birds get pregnant?
From: Andrew Hobbs <>
Date: Thu, 15 Jun 2006 12:36:24 +0800
>Interesting reading.
>Does anyone know how does the pregnancy of a bat or a flying fox work.

>Tim in Balgowlah - Northern Beaches of Sydney

The same thought occurred to me. As far as I can tell, from my mammal book and various internet articles, bats and flying foxes have a normal pregnancy compared to other mammals. They often mate in Autumn though some bats don't ovulate and fertilize until spring, storing the sperm until then. However the pregnancies usually last in the order of a few to six months during which time the female flies around and feeds normally. Most seem to have a single young though a few have 2 to 3. Some species even migrate during their gestation.

Hence pregnancy doesn't seem to crimp their style at all.

Andrew
===============================
www.birding-aus.org
birding-aus.blogspot.com

To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line)
to: 
===============================

<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU