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 Post subject: Re: True or False? (RV)
Unread postPosted: Thu May 21, 2009 11:01 am 
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1.) (True). Zebra's do have a shiny coat which is said to dissipate over 70 percent of incoming heat and some scientists believe the stripes help the animals withstand intense solar radiation. I also believe it has something to do with their black skin as with Arabian horses in the desert.

2.) (False). The answer is false, it is not impossible for the Wandering Albatross to cross the doldrums, however it is very difficult as they do rely on the updrafts to glide, possibly in a storm situation.
However, it is the equator that separates North from South. The Doldrums or 'Inter Tropical Convergence Zone' follows the suns zenith often allowing it to extend well into either Hemisphere, therefore the Albatross can and does cross over into the Northern Hemisphere, but they are predominantly in the south.

3.) (True). Experiments at the 'American Psychological Ass.' have shown that Baboons do think abstractly.

4.) (False). I suppose a Giraffe would be able to drink water a lot easier if
his front legs were shorter, but the forelegs are longer than the rear.

Thanks everyone for taking part. :thumbs_up:

Timepilot your answers were close, but i think OWN was a bit closer.

so OWN you are IT. :wink:

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 Post subject: Re: True or False? (RV)
Unread postPosted: Thu May 21, 2009 12:36 pm 
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Timepilot wrote:
b) F (I've seen them off the West Australian coast :P )


And Australia is not in the Southern oceans? North then? See, these Aussies are always confused! :mrgreen: :mrgreen:

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 Post subject: Re: True or False? (RV)
Unread postPosted: Thu May 21, 2009 12:47 pm 
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bishop3006 wrote:
Timepilot wrote:
b) F (I've seen them off the West Australian coast :P )


And Australia is not in the Southern oceans? North then? See, these Aussies are always confused! :mrgreen: :mrgreen:

I thought he was trying to pull my leg. Image

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 Post subject: Re: True or False? (RV)
Unread postPosted: Fri May 22, 2009 2:24 am 
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Quote:
And Australia is not in the Southern oceans? North then? See, these Aussies are always confused!


I ain't no Aussie (not a REAL one) - nope I got myself confused between doldrums and the roaring forties :wall: :slap: And also, dummy that I am, missed that southern ocean was not capitalised :redface: :cry:

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 Post subject: Re: True or False? (RV)
Unread postPosted: Fri May 22, 2009 2:41 am 
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Thanks Siobain. Nice Q, BTW! :thumbs_up

All of the following questions are about reptiles; as always, answer T(rue) or F(alse) - explanations, where applicable, would be a bonus:

A) All reptiles have teeth.
B) A turtle’s shell is formed from flat bones fused with parts of the spinal column and the ribs.
C) One difference between a Cape cobra and an African boomslang is that the former has fangs in the back of its mouth, while the latter has short fangs that do not fold up when the mouth is closed.
D) All reptiles have three-chambered hearts.
E) Male lizards and crocodiles have a single penis, but male turtles and snakes have two penises.
F) Some turtles hibernate through the winter at the bottom of ponds.

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 Post subject: Re: True or False? (RV)
Unread postPosted: Fri May 22, 2009 9:52 am 
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Timepilot don't be so hard on yourself, we all have our days. I'm sure
mine is just around the next corner. All input is much appreciated. :thumbs_up: :D

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 Post subject: Re: True or False? (RV)
Unread postPosted: Fri May 22, 2009 4:24 pm 
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A) (False) Turtles do not have teeth.

B) (True) The inner layer of a Turtle's shell is made up of 60 bones that
includes portions of the backbone and ribs.

C) (False) The African Boomslang is back-fanged. The Cape Cobra has fixed front fangs.

D) (False) The crocodile is an exception among reptiles in terms of heart structure. In the crocodile heart the partition between the right and left ventricle has been completed and resembles the four chambered heart of Birds and Mammals. Nevertheless a peculiar difference from the four chambered heart does exist, specifically, the right ventricle pumps blood into not one but 2 separate vessels. Such an arrangement allows the crocodile to switch between normal and low oxygen conditions by closing the pulmonary circulation.

E) (False) Snakes and Lizards have 2 penises called Hemipenes. Crocodiles and Turtles have one.

F) (True) In very cold conditions water turtles bury themselves in the muddy bottoms of lakes and ponds to hibernate during the winter months.

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sat May 23, 2009 1:36 am 
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Great stuff, Siobain! :clap: :clap: :clap: And excellent explanations too!
YOU'RE IT! :thumbs_up:

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sat May 23, 2009 1:46 pm 
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A) A Giraffe is able to go longer without water than a Camel.

B) Orchids can make a Bee drunk.

C) Putting a small amount of alcohol on a Scorpion's back will cause
it to go crazy and sting itself to death.

D) Elephants can mimic sounds.

E) The young of the Spotted Ragged Tooth shark fight each other to
death before birth leaving only the strongest to survive.
Other names for this specific shark are:
Grey Nurse shark (Australia)
Sand Tiger Shark (US & UK)


Please motivate answers where applicable.

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sat May 23, 2009 4:53 pm 
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A) TRUE: A Giraffe is able to go longer without water than a Camel.
The giraffe can drink 12 gallons of water in one sitting but can go for long periods without drinking at all. It only drinks water every 2 to 3 days when it is available and can go for weeks without drinking any water at all. It obtains water from dew on the leaves, as well as from the water content of the leaves themselves. A camel can "only" go 15 days without water.

B)TRUE: Orchids can make a Bee drunk.
Some plants reportedly rely on using intoxicating chemicals to produce inebriated bees, and use this inebriation as part of their reproductive strategy.One plant that some claim uses this mechanism is the South American bucket orchid (Coryanthes sp.), an epiphyte. The bucket orchid attracts male euglossine bees with its scent, derived from a variety of aromatic compounds. The bees store these compounds in specialized spongy pouches inside their swollen hind legs, as they appear to use the scent (or derivatives thereof) in order to attract females.

C)TRUE: Putting a small amount of alcohol on a Scorpion's back will cause it to go crazy and sting itself to death.

I have no idea, but it sounds crazy enough to be true. Perhaps an old wives tale? Or perhaps you thought this one up while under the influence of a "small amount of alcohol"? (Kidding)

D)TRUE: Elephants can mimic sounds

E)TRUE: The young of the Spotted Ragged Tooth shark fight each other to
death before birth leaving only the strongest to survive.

Because baby tiger shark embryos develop at different stages, the resulting offspring compete with each other before the mother gives birth. The largest, with teeth already developed, ends up consuming all of the other eggs and embryos. Exemplifying survival of the fittest, this larger embryo then develops to become the mother’s sole offspring.


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 Post subject: Re: True or False? (RV)
Unread postPosted: Sun May 24, 2009 2:30 am 
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That's amazing!

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sun May 24, 2009 2:53 pm 
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A) True
B) True
C) False

A scorpion cannot kill itself, it is immune to it's own venom. As scorpions are cold blooded, exposed to intense heat, their metabolic process malfunctions causing them to spasm wildly. This could appear as if it is stinging itself. If you google this, it is stated as true in quite a few places, however it needs further research.

D) True. An orphaned elephant named 'Mlaika' would mimic the sound of
trucks passing by. Also in a swiss zoo an adult african elephant mimicked
the chirping sounds of the aisian elephants it was kept with and stopped
making the deep rumbling sounds of the african elephants.

E) True. Just something to add to Africat's explanation, these female sharks actually have 2 uteri allowing one baby shark in each to survive.
An interesting fact is that there are reports of biologists probing the
bellies of landed females and having their fingers bitten by the cannibalistic little blighters and there fully developed teeth :twisted:

Thanks Africat, your answers were great, so you are IT :D

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sun May 24, 2009 5:28 pm 
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Siobain, nice questions!

Africat - those were excellent explanations with the answers. Thank you.


Quote:
A Giraffe is able to go longer without water than a Camel.
The giraffe can drink 12 gallons of water in one sitting but can go for long periods without drinking at all. It only drinks water every 2 to 3 days when it is available and can go for weeks without drinking any water at all. It obtains water from dew on the leaves, as well as from the water content of the leaves themselves. A camel can "only" go 15 days without water.


I don't want to attack you two on the answers, but I've often wondered about this sort of comparison. Is this really comparing apples with apples? Or is it comparing apples and oranges? I've not researched this (my Southern African mammal books are a bit short on info on camels... :tongue: ), but am merely wondering. Are we speaking about camels and giraffes in their natural habitat in the wild? Or are we speaking about wild giraffes and tame camels?

The reason I say that is, if one looks at the reasons why giraffe don't have to drink is that they get moisture from their food. Fair enough, I can live with that.

But what about the camels? Camels in a wagon train - how much moisture is there in the hay they get? And the other food that is available? If the food they eat had the same moisture content as that which the giraffe eat, would the above still hold?

Anybody knows? Enquiring mind is wondering... (Not wandering. Well, maybe not...)

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I believe that for man to survive, we must work with nature rather than against her. We need the land; the land doesn't need us. Too many people have lost sight of this fact. - Bruce Truter


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 Post subject: Re: True or False? (RV)
Unread postPosted: Sun May 24, 2009 6:00 pm 
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A debate is always fun bishop, this is food for thought. The
way you have put it, i think it does come down to the diet.
A giraffe's diet is far more succulent than a camel's and i can imagine
the hay a camel is fed or the food he would have to find for himself in the desert would have far less moisture in it. Arguably the camel could be the winner here.

good point. :lol:

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 Post subject: Re: True or False? (RV)
Unread postPosted: Sun May 24, 2009 6:03 pm 
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bishop3006,
I'll have to leave those inquiries to someone way more informed about those issues. I hope someone does clarify your inquiries, as I would be very interested to know more myself.

Now on to a few inquiries I do know the answers to: T or F ?

1.) Mopani worms are superior to beef not only because they can be stored for months, but because they also contain 2 times the protein content, by unit weight, as beef.

2.) Albatrosses can stay out to sea for months on end because they not only have ample fish and squid available, but can sleep on the water, and have built-in desalinization plants so they can drink the ocean water.

3.) The following are ALL true about the baobab tree:
* The white pulp of the fruits contain vitamin C and cream of tartar.
*The leaves can be boiled down and eaten as a vegetable.
*Ash from the burnt wood can be a substitute for salt.
*The hard wood of its gangly branches make fine walking sticks.

4.) Lesser bushbabies (Galago moholi) can clear a full 2.5 meters - that is around 17 times the length of its own body!


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