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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Sep 25, 2012 11:10 pm 
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Fantastic that we have such lateral-thinking peeps! Keep it comin' - it beings new perspectives to the original Q so that we all learn something new. :clap:

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Wed Sep 26, 2012 10:02 am 
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Also depends on what kind of teeth you have in mind and what they need to do with them. :hmz: And will it then still be a bird? :hmz: Why is a bird a bird? :hmz: Is it because they have feathers or because they have a crop? :hmz: Or maybe because they do not have teeth? :hmz: :twisted:
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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 02, 2012 4:28 pm 
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Well i say it is a myth. Thousands of years ago, birds had teeth and could fly.
:think: Birds like all other living things, has got different organs.

1) A crop.
2) A second stomach called a gizzard.

:wink: They swallow the seeds or food whole, it goes to the crop then to the gizzard. The gizzad are filled with small stones, which the bird also swallow and the small stones grind the food to digest. :roll:

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Mon Oct 08, 2012 3:19 pm 
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Yep, just back from Kruger; and never saw a single bird with a tooth. :P

The fact is that this statement is actually a fact! Proper teeth would upset the centre of gravity and weigh the bird down. Ancient dinosaur-birds did have teeth, but they also did not have proper feathered wings and a an aerodynamically light body like today's avifauna: their wings were more skin like and they tended to glide rather than properly fly. The contention that a heavy bill (like a hornbill's or a parrot's) does not upset the centre of gravity sufficiently to make heavier-billed birds unworthy of flight is an interesting one; however, though they appear heavy, the bills are actually relatively light, whereas solid teeth weigh a mean size more.

Thanks to everyone who participated. :clap: :clap: And, welcome to the quizzes, Philip. :thumbs_up: :thumbs_up: Since picnic is the only one who said 'Fact', I'll pass the baton over there ... :clap:

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Mon Oct 08, 2012 10:48 pm 
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:D I can't remember that good but we had a discussion on the same case, very long time ago in school. The conclusion was very much the same. :)

Bull sharks in freshwater possess several organs with which to maintain appropriate salt and water balance; these are the rectal gland, kidneys, liver and gills. All elasmobranchs have a rectal gland which functions in the excretion of excess salts accumulated as a consequence of living in seawater. Bull sharks in freshwater environments decrease the salt-excretory activity of the rectal gland, thereby conserving sodium and chloride . The kidneys produce large amounts of dilute urine, but also play an important role in the active reabsorption of solutes into the blood. The gills of bull sharks are likely to be involved in the uptake of sodium and chloride from the surrounding freshwater, whereas urea is produced in the liver as required with changes in environmental salinity. Fact or myth?


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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 12:08 am 
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A long discription piccie :big_eyes:
Fact... :hmz:

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 3:12 am 
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:shock:

Can only be a fact! :lol:

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 8:22 am 
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I don't even understand half of what you have said, but it sounds like fact. So fact it is.

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 10:49 am 
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:lol: Heksie. :thumbs_up: You are it as it is a fact. :wink:


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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 3:57 pm 
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Thanks piccie
Now fact/myth?
The black-footed cat is endemic to southern Africa, and primarily found in South Africa,Zimbabwe, Angola and Botswana.

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Tue Oct 09, 2012 4:13 pm 
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Heksie wrote:
Now fact/myth?
The black-footed cat is endemic to southern Africa, and primarily found in South Africa,Zimbabwe, Angola and Botswana.


Myth?

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 Post subject: Re: Fact or myth (RV)
Unread postPosted: Wed Oct 10, 2012 7:02 am 
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Myth. The BFC is not found anymore in Botswana; furthermore, it is only found in the arid regions of the other three countries, and only in small parts of Zim and Angola - not all over.

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 Post subject: Re: True or False? (RV)
Unread postPosted: Wed Oct 10, 2012 7:16 am 
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T or F:

The Kori Bustard is the world's heaviest flying bird?

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 Post subject: Re: True or False? (RV)
Unread postPosted: Wed Oct 10, 2012 8:07 am 
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This is true.

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 Post subject: Re: True or False? (RV)
Unread postPosted: Wed Oct 10, 2012 8:16 am 
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True :D

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