Differences between humans

SuaSponte,

If you are really interested in this area of anthropology you should get a copy of the Princeton Paperbacks version of The History and Geograpy of Human Genes by L. Luca Cavalli-Sforza and all. Try http://www.addall.com for the lowest price with postage added in. Also available as a used book. Figure about $20, the $180 version is the hardback.

Not only does it give a good explaination of Race and what it is good for, it also gives the best explaination of the genetic work being done and makes it readable (CS must have been a good teacher, probably still is!).

Mipsman wrote: " I admit the current research does seem to
indicate that there are two species."

Everybody, write that down!!! :slight_smile:

“However, is there any indication that quantitative differences in mtDNA, like the 6.7% difference mentioned in the article, has any correlation with interbreeding capability?”

No, who do you think would make out debating lives that darned easy? But do you have any idea how many pathological conditions are being laid at the door of mtDNA errors? Things so unrelated that you have to wonder who’s idea it was to put this much “stuff” into a - what? An energy pack?

And in our species, only small errors get born, the rest get aborted, early.

“What is the difference between horses and mules (nonfertile offspring) and dogs and wolves (fertile offspring)? Could some of the mtDNA difference just be genetic coding for furrier toes in Neanderthals?”

I wish I knew how to collect more information (reliable) on the interbreeding of what we think are species. I just read that bears are interfertile (polar and brown). Who’d have guessed, not me.

Three different kinds of monkeys look alike but are not able to produce viable young - you know what that means - and because they look alike zoos buy them and cage them together. They live in separate areas of Africa where living conditions are alike enough to p roduce look-alikes, but they still developed into different species.

No, of course, I can’t find the reference! I been looking for days.

“Every time I see somebody with prominent eye brow ridges, I think he has some archaic Hs genes from somewhere in his family tree. Note brow ridges are almost exclusively male, maybe missing in mtDNA.”

And I’m almost rude enough to grab a camera and ask for a profile shot. Almost. And I’d agree to AMH for some eyebrow ridges (weren’t they hollow instead of bone through and through like Neanderthals?) I’d also guess that whatever made those eyebrow ridges essential to Neanderthals might make it desirable in Hss and AMH somewhere on this planet.
Do men wear sunglasses more often than women?

Colin Patterson’s Evolution, Cornell University Press, first ed 78, second ed 99, p 143; pair of photos, profiles (1) young chimp - looks like a cousin (maybe) (2) adult male - total change in set of law, ears, brow and brow ridges, not my cousin. Maybe brow ridges are a function of testosterone. I’d send you copies of those pictures but you don’t use hotmail.

Is this confusing enough, can I quit here?

Yes.

Never land alone. J. Winters

Homer:

Some of whom get too testy from time to time. Do not insult members of this forum. Knock it off or take it to the Pit.

I can help a little here. It is horses and donkeys you are referring to, not horses and mules - mules are the offspring of the first two. Horses and donkeys have different numbers of chromosomes - it’s amazing that they are capable of reproducing together at all.

I’m not sure about dogs and wolves, so won’t address that, but you might be interested in some information concerning cats. Domestic cats and many of the species of small wild cats are capable of interbreeding, with varying degrees of fertility in the offspring. The African and European wild cats can interbreed with each other as well as domestic cats, and produce fertile offspring. (Same number of chromosomes.) The Asian Leopard Cat, Amur Leopard Cat, Jungle Cat, Fishing Cat, and Serval, that I know of, can interbreed with domestic cats and produce offspring; female offspring are fertile with either species (domestic or wild), but males are sterile, and further crossing of fertile females to domestics produces sterile males for 2 more generations. (Same number of chromosomes.) Geoffrey’s Cat, a South American cat with a different number of chromosomes, can interbreed with domestic cats and produce offspring, but all of the offspring are sterile (so far).

Even more amazing - descendants of one type of hybrid (for example, Asian Leopard Cat/domestic) can interbreed with the other wild cats mentioned or with their hybrid descendants. For example, Fishing Cats and Servals are being bred to ALC hybrid descendants (Bengal Cats - accepted as a domestic breed by most cat registries.)

Feline taxonomy is a huge circus right now, and probably will be for years to come - it’s hard to find two sources that even agree on how many species of felines there are!

I think the Masai (or Maasai) are a good example of this.

They are an East African nomadic people who traditionally herded cattle across the highlands of Kenya. Cow milk mixed with cow blood formed (still forms?) a staple part of their diet.

(An Aside) Coosa, nice post, have you looked up the combo names on the internet? “Liger” for example? got some nice photos if you dream up the right names for the crosses. I’m still trying to find the bear (polarxbrown) the trio of monkeys source. Will post it to add to your collection when/if I do.

Some quick digging turned this up at The Dog Owner’s Guide.

Dogs developed from several subspecies of wolves scattered throughout the world some thousands of years ago.

Mastiff-type dogs probably were developed as a result of gigantism originating in populations of a mountain wolf in northern India or Tibet. Most other breeds are presumed to have developed from crosses between the northern, dingo-pariah, and mastiff groups, some with an admixture of
dwarfism genes.

Three canids – dogs, wolves, and coyotes – seem to crossbreed freely.

Wolf = Canis lupus
Dog = Canis lupus familiaris
Coyote = Canis latrans

The species names of Wolf and Dog would imply that domestic dogs are considered a sub-species of wolf… doesn’t explain Coyote though.

Not sure if this is what you are looking for, Jois, but the reason I know so much about the feline hybrids is that some of them are being selectively bred with the intention of establishing them as accepted domestics. Those that are have names to distinguish them as ‘breeds’.

Bengal: accepted as a domestic cat breed for about 15 years now. Wild cross: Asian Leopard Cat and/or Amur Leopard Cat (Amur may or may not be a subspecies of the Asian)Most ‘domestic level’ Bengals have about 8-10% wild genes.

Chausie: Wild cross: Jungle Cat. Bengals sometimes used as the ‘domestic’ cross.

Savannah: Wild cross: Serval. Bengals usually used for the ‘domestic’ cross.

Bagral: Wild cross: Fishing Cat. Only Bengals used as the ‘domestic’ cross, as far as I know.

Safari: Wild cross: Geoffrey’s Cat. Not sure what is usually used for the domestic. New World cat - different number of chromosomes. No fertile F1’s yet, that I know of, although I’ve heard that the University of Washington, which was breeding these at one time, had a few.

If you’re interested, I can probably post links to websites for all of the names in bold print. Bengals, of course, are pretty well known by now, and if you use that term on a search, you’ll get about a million hits.

I pulled out my Robinson’s Genetics for Cat Breeders and Veterinarians, 4th Edition, to give a little more info about some of the others:

“Authentic hybrids between the domestic cat and various races (Scottish and European) of silvestris have been obtained on several occasions. . . . The hybrids seem to be regularly fertile.”

“More recently, fertile hybrids have been obtained between the domestic cat and the Steppe cat (lybica caudata) under controlled conditions. Furthermore, Pocock (1907) was able to produce hybrids between silvestris and an African race of lybica.”

“Two further crosses may be noted because of the implication that they can be productive of hybrids. The crosses were between the domestic cat and the bobcat (Lynx rufus) and oncilla or little spotted cat (F. tigrina). . . . The intriguing aspect is that hybrids could be produced at all as the point of departure for the old and new world species must have been a vast number of years ago. (My note: the last two species have different numbers of chromosomes than domestic cats.) Yet, despite this, the three forms can come together to produce viable offspring.”

Actually, the European and African wild cats (Felis silvestris and Felis libyca) and their various races are considered by most to be endangered in the wild because of interbreeding with free-roaming or feral domestic cats.

I guess I ought to go post this info in one of the Creation/Evolution debates, since I don’t think anyone has mentioned this as evidence of common ancestry.

I had no idea that all of this was going on! Isn’t it dangerous? (I know that wolf/dog crosses have great potential for being dangerous, for example.) Are these just expensive new pets or is there another purpose for the crosses?

Mispman:

In re archaic humans: not sure what you mean seeing no place. Of course we have archaic genes, we descend from them. Side branches are another question entirely. Evidence, real evidence, not superficial observations, points away from Homo Neandertalis having contributed to present populations. Nothing conclusive, but highly suggestive. No big deal. If you’re talking about Multi Regional hypothesis ( that different varieties of modern morphologies or “races” came from different Homo erectus pops), well MREH is going down the drain. Every piece of substantive evidence points to Out of Africa. Every. Wolpoff is going down in flames. He hopefully will stop clinging to a losing (on the evidence) argument.

In re race: there is no biological basis for race. Period. Your statement that " to say that race is undefinable is to deny the evidence of one’s eyes or to use a racialist’s “definition” as a strawman." is just the start of the problem. To put it in the most stark terms, and I say this to highlight the reason why this is not evidence, the “evidence” before your eyes is the same kind of evidence that led medievals to conclude that maggots spontaneously generate in rotten materials. If that is how we conduct science, well welcome back to alchemy.

Dog breeds is a red herring (1) they are artificially maintained by human breeding programs, not by natural selection (2) dogs snap back to the canine template when they go wild, (e.g. wild mutts). (3) canines are mucho more genetically diverse than humans. Apples and oranges do not shed light on each other.

In regards to the racial discourse, I’ve spent some time studying this and I hope it is not insulting to observe that tour beliefs regarding race reflect the conventional wisdom of the 19th century. They’re really not anything I have not seen before and had I my notes around me I could trace the pedigree of each of the concepts for you. But, they also have nothing to do with reality or what modern population genetics is just beginning to tell us (I personally leave aside Cavalli Sforza because I don’t have a great opinion of his European work). For example, your speculations on the “dark skinned race” of southern Asia — common place wisdom of the last century, well the 19th century actually. This may sound harsh, but I am afraid that is exactly where the ideas are coming from — and sadly most popular ideas about race. Old Victorian superstitions. But then lots of people still believe in literal Creationism, so perhaps I should just get used to it. What modern population genetics tells us is that the “negritos” of south east Asia are not closely related to Africans — except insofar as we are all very, very closely related to Africans, despite genetically trivial but eye catching surface differences. In fact they are most closely related to --if memory serves me here— to more northerly Asians. Their superficial visual identity with Africans (same facial features, hair, skin color etc.) is entirely coincidental and possibly recently developed (in population terms). I’m moving in precisely three days so I shall have to forgo giving full cites, my articles file is in some box somewhere. Jois probably can hook you up (although Jois also likes C-S and I don’t — his work on the ‘populating’ of Europe has been severely criticized by others as putting too much on ambigous genetic evidence. Still he does straight up work so I don’t want to make it sound like he’s not legit. I just don’t like him that much.)

Now, about defining race. Well, the question of skin pigmentation is considerably different from the question of “race”. Skin pigmentation is easy to define, although as the negrito and African example shows, says absolutely nothing about relatedness. “Race” on the other hand is a not very useful abstraction of the distribution of alleles in a few genes.

As far as pigmentation goes, dark skin is selected for in the tropics (helps prevent skin cancer) and apparently some of the ‘african’ features to boot, so it’s likely our common ancestors, who lived in the tropics, were pretty dark and maybe had some ‘africanesque’ features, or a pot-pourri of our modern range of features.

As far as the other stuff, there are not three or four big races. Tere is a single species with a great many populations of fairly minor variations in allelic distribution, some of which were separated from other populations by only partially effective geographic or perhaps geo-social barriers. But the populations differ only in the frequencies of various alleles, there being no alleles fixed within or private to particular “races” (although the PNAS article, the cite still escapes me, claimed in 98 that they had nailed an “African” and “non-African” private allele, but as I said, they failed to sample the likely transitional Africans, weird oversight at best). And the places where frequencies change at one locus are not in general the same places where frequencies change at other loci. You get a big muddle.

Simply put, if there are races, we should be able to point to geographical boundaries between races. I’ll get a little technical, since I just dug up some old cites by accident: Most genetic trees put African mitochondria as paraphyletic (A group is said to be paraphyletic if it consists solely of forms that share a single most recent common ancestor which is included in the group, but does not contain all such forms) to the rest of humanity. If you want to define races as clades (at least mitochondrial clades) then you need several “black” African races -and what are they going to be? Where are the lines going to be drawn- as well as a race including some “black” Africans and everyone else also. In order to find races you have to characterize the boundary, not the core areas.

Try checking out, for a general discussion which includes some comments on problems in Cavalli-Sforza’s approaches: Goodman, Allan. “The Problematics of “Race” in Contemporary Biological Anthropology.” in Biological Anthropology: The State of the Science 1995. Among some things other things to read are Cavalli-Sforza, L Luca; Menozzi, Paolo; & Piazza, Alberto. “Scientific Failure of the Concept of Human Races,” in _The History and Geography of Human Genes. Princeton University Press (Princeton, 1994): 19-20.

In regards to the later, the authors explain how genetic information abundantly proves that there are no distinct “races” in the human species. The number of “races” identified by recent authors who cling to the “race” concept ranges from 3 to 60. “Race” classifications are arrived at without consistent criteria. C-S et al note that there is without question only one human species. All attempts to find smaller groupings within the human species are entirely arbitrary. Gene frequencies vary so greatly within particular populations that they prove useless for distinguishing among geographically defined populations. Even the most isolated human groups carried with their founders diverse sets of genes; large regions of the world are all well known to have experienced many migrations and consequent exchanges of genes. C-S et al conclude “From a scientific point of view, the concept of race has failed to gain any consensus; none is likely, given the gradual variation in existence. It may be objected that the racial stereotypes have a consistency that allows even the layman to classify individuals. However, the major stereotypes, all based on skin color, hair color and form, and facial traits, reflect superficial differences that are not confirmed by deeper analysis. . . .” In other words, alchemical superstitious thinking with no place in a science. Contrary to what many think, race is rejected not because of “political correctness” but because it is baaaaaaaaaaaaaad science. Hell, given the reactions I have seen over the years, on both Left and Right, the politically correct thing is to cling to race no matter what.

Anyways, race as a biological, or scientific concept is useless and positively gets in the way of really understanding our species scientifically. That’s the dispassionate, scientific view. Now the emotional, political view gets all attached to the old superstitions.

In re your statement the “mantra that culture has nothing to do with race seems designed to throw much of human prehistory out with the bathwater” — I have no idea where this comes from. Culture has nothing to do with genes, other than all humanity has a basic template on which to base behavior. You seem to be confusing linguistic-cultural categories (e.g. Bantu or Indo-European) with genetic ones. Other than neighbors are usually closely related for trivial reasons like proximity, there’s no basis for this thinking, which is typically Victorian. Look at Arabic speakers, few of whom actually descend from emmigrants from the Arabian peninsula. Language and culture adoption by otherwise unrelated populations is amply attested to from the earliest historical records to recent times. We humans are malleable characters. To make a vast over-generalization, even in the bloodiest past conquests say in Classical times, women and young children were usually spared and assimilated. Why? Economics — labor and of course, children are malleable. There is no historical or other supportable reason to believe in “Bantu” races or Indo-European ones. Think of the “Mongol” horde — by the time it reached the European world it was composed of a huge mishmash of Turkic, Indic, Mongol etc peoples along for the ride as it were. These visions come straight from old, romantic Victorian histories which unfortunately are more fun than the more prosaic facts supported by archaeological, genetic and linguistic research.

So, rather than “to close one’s eyes to the concept of race removes one of the few tools we have to reconstruct a great deal of human pre-history” to remove race is to open one’s eyes to the less romantic and sweeping but more factual and in my mind more interesting complexity of human prehistory. The sweep of the old Romantic myths is fun but contrary to your statement, prevented or hindered scientific research into understanding our prehistory. E.g. Out of Africa was long opposed because of race, until the genetic evidence just became killer. I could go on and on. I’ll make a rash statement, and say that few concepts have done more to close out eyes to an accurate, scientific reconstruction of prehistory than race.
Boris and others annoyed by my Aryan discourse: Sorry but Aryan is just plain inaccurate and wrong. The confusion of genetics and linguistics is precisely what I write about above. Your models are frankly Victorian and have no place in a scientific understanding of our past. I’m not saying that to be mean, to flame or otherwise disrupt. That’s just the facts — long painfull years becoming conversant with linguistics, genetics etc. (Not a specialist mind you) taught me where the facts lie. I’m just saddened that so many believe these old romantic tales, although they are fun. (By the way, please do lose the “African Tribes” thingy — it’s not very helpful for understanding populations. In fact its plain unhelpful. There are a good number of African populations which do depend on and use milk products. Again, one of the impediments of racial thinking is you miss the detials, which ruin the generalization. I was not talking Botha.

Sorry if this all seems excessively picky and so forth, but I rather think if people are to make progress in the world, we need to have an accurate, scientific understanding of the world. Of course I realize few agree with this.

Because I think its bad form to ramble on about an article without citing it, and because this little guy is online:

The article in PNAS which claimed a fixed African-non African difference was

Eugene E. Harris and Jody Hey “X chromosome evidence for ancient human histories” PNAS Vol. 96, Issue 6, 3320-3324, March 16, 1999 (damn I thought it was 98 for some reason, time flies)

Online at: http://www.pnas.org/cgi/content/abstract/96/6/3320
An article which nicely summarizes in a few pages current views on human descent (and takes Harris & Hey to task for bad sampling design, etc.):

Mark Seielstad, Endashaw Bekele, Muntaser Ibrahim, Amadou Touré, and Mamadou Traoré "A View of Modern Human Origins from Y Chromosome Microsatellite Variation " Vol. 9, Issue 6, 558-567, June 1999
Online at:
http://www.genome.org/cgi/content/abstract/9/6/558

Both can be downloaded in full as PDF files. I think this is free.

I was called “Victorian” several times here. Do I and the rest of the readers need to be subjected to this level of name calling? Where are the moderators?

Putting dust ruffle covers on the piano legs.

Mipsman, they are all checking the cites and texts mentioned in these two threads and probably be voting soon about whether Victorian is spelled with a capital or not. :slight_smile:

Mispman, Victorian as a technically descriptive adjective on the intellectual pedigree of race only I assure you. I by no means desired to imply you truly desired to live in over-upholstered, frilly surroundings.

I was going to post to this thread, but Collounsbury has pretty much said anything I would have covered, but with a great deal more depth and perspicacity… Nice research & post!

If you act Chinese, you ARE Chinese. Who cares what you look like. (Mongol reign being an example, also the acceptance of Italian artists and Franciscan Monks into the court - provided they adopt the culture, they were treated as Chinese.)

I guess I tend to think of ‘race’ as more ‘culture’ than genetics. How do I define myself, racially? Native American? Northern European? Nordic? My self definition, and how others percieve me (White), has little to do with my REAL genetic makeup, and more to do with a pale skin and a “white” culture type. Hence also the tendency to claim a person rejects their RACE if they do not practice their CULTURE.

Most of what gets defended or decried on racial grounds seems to be culture - even some of the appearance issues may be more relevant culturally than otherwise. (isn’t there an African tribe that has very tall women because of an aesthetic preference for them? Preferences do tend to make for some genetic shifts, so culture may have come first.) Appearance of groups that ACTED the same (at inital definition point) is how ‘race’ seems to be defined. I have a big butt, but ain’t NOBODY gonna mistake me for African American - though if I had features of the culture (appearance, presentation, conversational content, style, interests, religion/social activities, etc.), people sure might start wondering if I might maybe be MIXED. I have yet to see evidence that culture is defined by genetics, so other than the aforementioned superficial characteristics (earlier posts), I can’t see the value in even trying to define genotypes ‘racially’. Even if there was a genetic factor, it would be so complex and subtle that researching it would be extremely difficult, and who gets to define the group based on what characteristics?

If you want to talk CULTURES, that’s entirely different (or is it???). There do appear to be some tracable threads in cultures, threads which might serve to identify groups as separate from one another. Aesthetics, for example, is a fun area of Cultural/Human Geography. You could then partially define groups in terms of preference for symmetry or asymmetry, for certain colors and combinations of colors (or dislike of certain colors), and so forth. Aesthetics seems to be passed down generationally - maybe genetic, maybe cultural. Not exactly something you can peg someone for usually - hey, your pictures are hung symmetrically, you must be from northern european stock, definitely not Latvian! But then, cultures mix and blend, with peculiar threads sticking out across generations of mixing, and other threads vanishing. Culture drifts, just like genetics. So even there, there is no solid definition or even one method of definition. Groups form, shift, reform, shift. What appears at one point in time to be a solid and easily defined group is just a snapshot, and therefore cannot be labeled as anything other than relevant to that particular moment, from the perspectve of that particular labeler. The only relevant factor in the reseach I used in my thesis work was self-defintion (“I am Chinese because I say I am, I define that in my own way, and the definition varies - sometimes I may be Chinese-American, sometimes Chinese, sometimes Han, sometimes Chinese with some Turk thrown in way back, sometimes ‘just’ American, etc…”). Race will exist as long as anyone is using the label, but that doesn’t make it science.

So, to answer the OP, of course ‘races’ are still developing. Because we define it from our point of reference and back, time-wise, the current stereotype/approach/perspective cannot possibly be the end point. We’ve labeled a snapshot (and I agree that the original was probably taken with a Victorian camera), and life and human development goes on beyond that point. The farther we go from that snapshot, the less relevant the old definitions will become. Unfortunately, common usage loves a label, so we’ll just come up with some new ones once we stop placing value on the old ones. Just to add a twist to that, seems that the IDEA of race as popularly defined is part of many current cultures, so our cultures will have to change in order for us to start changing our labels of cultures/races… And many people defend their culture fiercely. And at the same time, genetic drift happens, and some groups will end up with an overlap between culture and physiology, which will then get added to the ‘identifying’ features of the ‘race’.

(Rant> The related issue of ‘racial determinism’ was the death knell of Human Geography in the US - too much insistance a century or so ago that ‘racial’/cultural characteristics were indeed locked into genetics, or were at least based FIRMLY on local development of ethnic groups. VERY bad science, and it ticks me off that I had to get to the graduate level before I got to play with the INTERESTING concepts in Human Geography JUST because someone insisted on using bad scientific method, and therefore all reputable US universities stopped teaching Geography at all. Too bad racial labeling didn’t get dumped instead. /End Rant)

How can a word be inaccurate? Do you mean the word is obsolete? Tell that to people who put the term “Indo-Aryan” in language charts.

You’re still trying to crucify me for equating Aryan with “Nordic”, which I have never done. My original usage was, “Lactose tolerance is rare, and concentrated among South Asians and Europeans. I would even go so far as to say, lactose tolerance is concentrated among Aryans…” How can you possibly have thought I meant “Nordics” when I said “South Asians and Europeans”? As usual, I am totally mystified by how thoroughly I can fail to make myself understood. The Aryan race originated in Iran. Iran. Aryan. Get it? It propagated through North India and Europe. It is characterized by a bunch of physical characteristics, including usage of Indo-European languages and (I contend) lactose tolerance. If you want to disprove my contention, you’ll have to do better.

Fun? Victorian? Romantic? Am I at the wrong thread?

No. “African tribe” is not a contradiction in terms. I will continue to use this term despite the bad mood I recklessly created by using the term Aryan in a stage whisper. The Boers are an African tribe (did it it again! ha ha!). They are white, lactose tolerant, sunburned, and Indo-European. They defeat all rules applied to African tribes, which is irrelevant, since I have not applied any rules, blanket statements, brickbats, or claims involving “100%” to African tribes. I have applied generalizations. I also apply generalizations to Slavs (their skins range from light to ruddy, and they speak Slavic languages; if this were a rule it would be defeated by the existence of a single mute Slav), to Scandinavians (they speak Germanic languages and have pale skins), and to South Americans (they speak Spanish chiefly, among other languages). There is no social science without generalization.

Oooh … “racial thinking”. I awwwta be ashamed! The statement I did not make, which you are gumming so fiercely, is, “Africans do not consume dairy”. The statment I actually made was,

Yeah whatever I shoulda put “usually” in front of “low-lactose” so sue me. You respond to this by talking about “milk products”. Why? Did the last couple of words in this quote not make it onto the world wide web? Or are you certain that the people from these unnamed tribes consume dairy in high-lactose forms? Apollyon has answered this one, but you haven’t. I asked for statistics in my last post, and the best you could do was “a good number”? Why do you bother?

Yes, you’re right. You are an oppressed minority. The rest of us like to be inaccurate and unscientific and fight progress with “racial thinking” like “black people are more commonly lactose intolerant”. Please serve us some milk and cookies before you send us to bed.

Next time I hear someone sounding off about the importance of milk in school lunches in areas with a lot of black students, I PROMISE not to think any nasty racial thoughts, like, “What about all the black kids, who form 25-60% of that target population, who are going to get stomachaches from consuming all the nice protein and calcium crammed down their throats by well-meaning PTAs and the not-so-well-meaning money-shot lobby (AKA the American Dairy Council or whatever).”
My last paragraph, as usual, was intended ironically.

The “milk and cookies” reference wasn’t related to talk about lactose. “Milk and cookies” is my term for “condascension”, and I didn’t mean to insinuate that anybody wanted people to drink more milk.

Jois, I don’t want to hijack this thread any further, so I’ll give a very brief answer and if you are interested in discussing this in more detail, we can start a new thread. My original intent in posting the information was to point out that the lines dividing species, subspecies, and breed/race are not as clear-cut as one would think.

Not dangerous like wolf hybrids - these are all cats within the size/weight range of domestic cats, not 70 to 130 pound dogs. There are also personality differences between canines and felines, and differences in human expectations of behavior, that affect any ‘danger’ issue.

There ARE valid reasons for experimenting with the hybrids - some universities and some health organizations, such as NIH, have been or are involved with them. Unfortunately, most of the individuals involved are more interested in the ‘expensive pet’ category, and many of them shouldn’t be breeding cats at all, much less something as exotic as these hybrids.