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About John Silva
Expertise
I can answer almost any kind of question related to Tigers, i have the knowledge to give physical, and mental data, inclusing behaviour, diet, ... I can give specific answer about any of the subspecies as well.

Experience
Tiger Specialist, I know almost everything about Tiger and I can answer any question, even if its specific from a Tiger subspecie.

Education/Credentials
PUC-Rio University, Tiger Speciallist (Big cats in general)

 
   

You are here:  Experts > Animals/Pets > Wildlife > Tigers > Just to let you know.

Tigers - Just to let you know.


Expert: John Silva - 10/20/2009

Question
QUESTION: Hello,
As you can see, i am the previous Top expert on this section of Tigers. I am Raphael Heng. I have been busy with work, hence i had to quite Allexperts.

This isn't really a question, but just to tell you, I have spent some time reading some of your past answers, and feel really disappointed.

I hope that you can spend more time researching about Tiger Conservation, be it about Wild Tigers or even Captive Tigers. Please, try to research on the International Tiger Studbook.

Note that there are no purebred Bengal Tigers outside India right now. So ALL white tigers you see in Zoos all over the world, outside India are not purebred Bengals! They are all Siberian/Bengal Integrade, descended from Tony!

And also, take note of the fact that the Bengal/Siberian Integrade project in South Africa is a fraud, as I have exposed it 2 years ago.

Lastly, take note of the terms you use. Tigers do not have mane, they have ruff hair. Bengal Tigers do have ruff hair too, the males that is. Females have much shorter ruff hair. So, there is no way to judge a subspecies based on Ruff Hair length, it is used to judge Gender.

Stripe Pattern, Proportion of tail thickness, thickness of coat(Especially Winter coat) are the key indicators. When it comes to Indochinese, remember the prominent Whiskers. All subspecies have their own unique characteristic. So, do research on them. Look at more subspecies of Tigers in real life, it will help.

Thanks.

La

ANSWER: i know tigers do not have a mane, i just said "mane" because the person that asked me said that way and i knew he was not very good with the english language.

"im not that good either"

im just trying to make people understand what i mean, with a simple and understandable language, sometimes using terms that they know and use.

They are just curious and using mane instead of ruff hair makes no difference to them since we are talking about the same thing.

About stripe pattern, tail thickness, thickness fo coat etc, i know they are different, i never told they were not... the thing is that its impossible to judge it by only seeing a picture...
thats what i said.. a person gives me a picture and asks the subspecie..

i just cant tell... every picture has a different colour, angle, size, etc... i can tell which subspecie it can be or cant be but i cant be precise.

the only thing that i didnt know was the fact that there are no purebred bengals outside india, thats something i didnt know since we  have here in the zoo i work a BENGAL tiger... it came from india and its documents tell its a bengal tiger, which i believe since it looks 100% like one, but again i cant tell unless we make a DNA test or something.

White tigers are something i really dont study much, but i red in alot of places that they are bengals, that only the bengal subspecie is the one that can go white, with a few exceptions of the siberian sibspecie.

no problem, feel free to send me more.





---------- FOLLOW-UP ----------

QUESTION: Hey there John Silva,

I was just giving you some tips and advice, chill down my friend.

The thing about Bengal Tigers is that, almost every Zoo outside India claims to have Bengal Tigers! But the fact is that according to the International studbook, which i am sure you don't have, there are no records of purebred Bengal tigers outside India.

There are a total of 210 Bengal Tigers alive today in captivity, descended from 29 wild caught founders. All maintained in Zoos of India. Zoos such as Australian Zoo, Singapore Zoo all claim to have Bengal Tigers,  but are they true purebred Bengals? Nope. They are just Intergrades which might in fact have high percentage of Bengal Genes.

But the fact is that as long as they are not 100% purebred bengal tigers, they are considered Intergrades(offspring as a result of breeding of different subspecies). You see, there are many tigers out there with mixed ancestry, in many zoos and circuses. Some of them may have 60% Bengal genes, 20% Siberian Genes, 20% sumatran genes. So are they Bengal Tigers? No. Unless they are 100% purebred, or else they are considered to be just intergrades, NOT Bengal.

This is clearly illustrated from the Studbook, which contain the gene line and ancestry of ALL purebred tigers. It is part of the Captive breeding programs available in all Zoos worldwide. Do you know anything about it at all?
There are thousands and thousands of tigers out there. And of them, only around a small percentage of them are purebred. Hence, there is a need for the studbook to maintain the purity and genetic diversity of purebred Tigers, and to distinguish the difference between purebred and intergrade tigers. As mentioned earlier, every zoo will claim that their tigers are purebred, but most of them are not, unless stated in the International or in your case, the SSP studbook records.

Now shall we move on?
As for white tigers. YES! I get your point. The White gene only CAN occur in the Bengal Subspecies. I am sure you study genetics and did your research. Sure, but please, read specifically on the ancestry of white tigers today! The first white tiger found and brought into captive was Mohan. He and his own daughter(orange), Mohani, gave birth to the first litter of captive white tigers.

And guess what? All white tigers are descended from them. Yes, they are indeed purebred Bengals. However along the way, a Siberian Tiger was introduced and bred with this line of bengal tigers. Which resulted in the first white Intergrade Tiger, whom we known as Tony. Who is now responsible for all White tigers around the world(Other than India).

India has been intelligent in saving their bengal Tigers, they are not sending their purebred captive bengal tigers out of India because there are not other purebred Bengal Tigers outside India.

So those white tigers you see outside of India zoos, be it Australia Zoo, Singapore Zoo, San Francisco Zoo or whatever zoo you want to mention. They are all not purebred White Tigers. Because, simply, they are not recorded in the studbook, and are descended from Tony - A bengal/siberian intergrade. The White gene was only founded in Bengal tigers, but introduced to the Siberian/Bengal intergrades. Get it?

Siberian Tigers can never have white genes on their own. Remember this fact. NEVER. It was the bengals who introduced it to them.

All this is part of captive breeding, so you should spend more time reading more about in-situ conservation, especially on studbook records.

I am glad to know that someone has the urge to take up the responsibility of being an expert on allexperts.com. I just want to give you some advice, which might help you along the way. Everything about tigers are interlinked, and you should start with in-situ conservation.

And, please, if you don't mind. Can you tell me the name of the Zoo you work for? I will be very willing and glad to be able to pay your zoo a visit, to see a purebred captive Bengal Tiger outside India. Remember if a zoo has a purebred tiger, the zoo will get the latest annual copy of the international tiger studbook. This is the law, and this is a very serious matter as it concerns the survival of the whole subspecies.

So yea, i applaud you for your effort. And wish you luck in answering your future questions. =)

--Raphael Heng

ANSWER: raphael, you are very rude in your text and i see you read lot of wikipedia.

Type "white tiger" at the wikipedia site and all this stuff about tony, and the other white tigers will show up on the screen, which ive red thousand times not only there. What someone asked me was about the genes of the white tigers, from which subspecies they were, and i answered BENGAL ONLY. thats it and thats right, no one asked about the history of the bengal tigers.

If the tiger here at the zoo i work for is 100% bengal, i dont know, but its documents say it, which i dont know if its true since ive never read the full thing since im not from the legal part or from the burocracy. Ive never in fact wanted to know it. Its shown to the public as a bengal tiger, thats 100% sure.

i know you are a fan of tigers and you probably know more about the history and about numbers than i know, since my point is not that... i study behaviour, physical anatomy and interspecies conflicts. Thats my specialty... my specialty is not conservation, even tho i practice it.

And i dont need to chill, you need since im quiet here answering my questions with all the knowledge i can and saving rare occasions, with 100% correct answer. I know everything? no... far from it... Do i make mistakes? yes... alot actually. It is normal? yes... everyone does..

I didnt get your point... you are just trying to show that you can add more to my questions, ehich is true.. but thats not what was asked... im just answering what people ask for... i dont need to give them the complete text block of history behind it.

Think we are done, and feel free to volunteer to the tiger's expert session if you ever want to answer again.

no offense, good luck.

john.

---------- FOLLOW-UP ----------

QUESTION: Hey there again, John.

I apologise for being rude, but that's just how i type. Exclaimation marks are considered rude? okay, i am sorry then.

So let me guess, the only website you get reference from is Wikipedia? That's why you typed "White Tiger" in wikipedia? I am sorry, but i have not even thought of going to wikipedia or researching there. There are thousands of tiger and white tigers books around, and also numerous papers on them. The story of Mohan and Mohani and Tony and White Tiger ancestry is general knowledge for people who are into Tigers, this is the basic especailly if you work in a zoo with White Tigers. Almost all zookeepers will know about their ancestry.
Not only wikipedia has that inofrmation.

Again, may i ask which zoo you work for? I am really interested in finding out. What kind of documents do you have? Many zoos that claim to have Bengal Tigers only have their tigers listed as "Panthera Tigris" not Panthera Tigris Tigris. What documents do you have? The most reliable document we have of ancestry of tigers today is simple - the Studbook.

Your speciality will be on Tigers in general, including conservation. Even if you don't know much about the conservation especially In-situ conservation of tigers, shouldn't you be reading more about it to improve your knowledge in it, and perhaps be more well-rounded in your answers?

And isn't it part of our responsibility to answer more than what the questioners want? If someone were to ask about white tigers, you can always include the fact that all white tigers outside India are not purebred. And it would even be great if you were to bring up the cruelty behind breeding of white tigers, and the fact that White tigers can only be bred through inbreeding such as Daughter mating with Father or Son mating with mother, which causes ALL white tigers to be cross-eyed and unhealthy, resulting in incredibly high mortality rate!

Even though the questioner may not be asking for that particular long and informative answer, would it hurt to provide slightly more?

I am just here to simply tell you that you should perhaps research more and give your questioners more in-depth answers which would allow them to be back and ask you more questions. I don't mean anything bad.

I will not be back, at least not for the moment. I am really busy these days. That's why i mentioned that i am glad that you took up the responsibility and keep this section going.

Again, I wish you all the best in your future answers. And yea, that's really the way i type, more of the offensive/debating style, you could read some of my previous answers if you are interested. Again, i apologise if you are offended.

All the best =)

Raphael Heng

Answer
i see how dumb you are by reading your first sentence.

when i red your second one i just stopped reading.

what i was telling you is that the tony matter is on wikipedia and everyone will read if they do the minimum research. i never told you that it was the only source i use. Thats what YOU are telling.

i stopped reading there and ill not answer your reapliesa again, this conversation is over, you are too rude and you should stop here.

no more,

john.

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