Re: BrainBashers: November 2005 Common Answers Result

On Fri, 2 Dec 2005 06:27:13 +0000 (UTC), Liisa Sarakontu
<lsarakon@xxxxxxxxx> wrote:

>Barbara Bailey <rabrabbjb@xxxxxxxxx> wrote in
>news:t1tuo157g0anjckl6spalhkdecvg8h3e1a@xxxxxxx:
>
>> Or is it a case of lots of eggs are laid, but only one chick is
>> raised?
>
>No. Papa ostrich can take care of up to 30 or so chicks. It would be
>terrible waste to lay dozens of aggs and then raise just one baby. Here is
>a photo I found with quick googling:
>http://www.landscapetours.co.za/Long/Ostritch__family1.jpg
>
>and here's another one:
>http://www.swasafaris.de/swasalbum/bg_bird_-_ostrich_&_chicks.html
>
>There are birds which raise just one baby, and also lay just one egg
>(albatrosses, large penguins). Some raptors have always two eggs, but the
>older chick most often kills its younger sibling if both hatch and so the
>parents end up raising one offspring a year.
>
>Liisa

What a neat picture! "Make Way for Ostriches!" Thanks again.

I can see that the lots of eggs/one chick strategy would be a huge
waste, but thought that perhaps ostriches were in that category of
critteres who have evolved methods to counteract huge egg loss/neonate
death rates --lots of possibilities, but only one or two young 'uns
are expected to make it to adulthood.

Barb

.

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