The New York Times has an article today about a new rodent discovered in Southeast Asia that’s so different, it’s been placed in its own family.
‘Oddball Rodent’ Is Called New to Science.
They live in the forests and limestone outcrops of Laos. With long whiskers, stubby legs and a long, furry tail, they are rodents but unlike any seen before by wildlife scientists. They are definitely not rats or squirrels, and are only vaguely like a guinea pig or a chinchilla. And they often show up in Laotian outdoor markets being sold as food.
It was in such markets that visiting scientists came upon the animals, and after long study, determined that they represented a rare find: an entire new family of wildlife. The discovery was announced yesterday by the Wildlife Conservation Society and described in a report in the journal Systematics and Biodiversity.
The new species in this previously unknown family is called kha-nyou (pronounced ga-nyou) by local people. Scientists found that differences in the skull and bone structure and in the animal’s DNA revealed it to be a member of a distinct family that diverged from others of the rodent order millions of years ago. “To find something so distinct in this day and age is just extraordinary,” said Dr. Robert J. Timmins of the Wildlife Conservation Society, one of the discoverers. “For all we know, this could be the last remaining mammal family left to be discovered.”
It sure does look delicious. While I don’t know any details about this new mammal, there are several predictions I can make about it based on our knowledge of evolution:
It will have red blood cells that lack nuclei.
It will have three middle ear bones.
It will have continuously growing incisors.
It will be endothermic.
And so on. I can make these predictions based on known synapomorphies within the mammal or rodent lineages. These are characters inherited from the common ancestors that all mammals (or rodents) share. If this new species is not related through ancestry with other rodents and mammals, and was perhaps “specially created”, there is no reason to suspect that it would have these characters, especially since they are not relevant to the morphological appearance of the animal.
41 Comments
Ben · 12 May 2005
Looks good. Let's eat.
Henry J · 12 May 2005
Does it taste like chicken?
steve · 12 May 2005
Prediction made by evolution: it will have similar DNA to other rodents.
Prediction made by ID:
SteveF · 12 May 2005
Yeah but those predictions are based on the evolutionary assumptions behind the lineages and the notion of common ancestors and therefore when those predictions are supported you will say that evolution is supported but you are just reinforcing a fundamentally circular blah blah blah.
Do I get an interview with Nature yet?
pough · 12 May 2005
Of course it will have similar DNA to other rodents. It was designed to have similar DNA to other rodents. My guess is that this rodent branched off from the other rodents several thousand years ago when the Laotians asked Masta Designa G to design them a new, tastier rodent for their markets. Yo! Nice work, G!
harold · 12 May 2005
"Yeah but those predictions are based on the evolutionary assumptions behind the lineages and the notion of common ancestors and therefore when those predictions are supported you will say that evolution is supported but you are just reinforcing a fundamentally circular blah blah blah."
I don't want to sound rude, but this makes no sense to me at all.
Before I drop a stone, under ordinary circumstances, I can make predictions. I can predict it will fall to the surface of the earth (assuming there is a clear path), and indeed, with a little knowledge, I can predict the velocity at which it will hit the ground to a high degree of accuracy. Those predictions are not directly based on my "assumptions". They are based on my knowledge of the theory of gravity (something I am by no means an expert in). Ultimately, certain very elementary "assumptions" do underly the theory of gravity (we can believe our senses, other humans exist and can also see what we see, etc), but almost everyone accepts these. The reasoning displayed above is analagous. Based on the theory of evolution, we should predict that the animal has certain traits; many more than are listed, in fact (by the theory of evolution it should be diploid, to take an obvious example, whereas by "special creation" or "intelligent design", it could have any ploidy, or indeed, a non-DNA based genome). If the predicted traits are there, the theory of evolution is supported. "Intelligent Design" can't be supported or challenged by any traits of this animal, since a magical designer could either "mimic evolution" or not, arbitrarily. (Caveat - I just realized that the article describes "molecular testing", implying a DNA-based genome, but I wasn't thinking about that when I wrote).
By your logic, any successful test of any hypothesis or theory would be "circular". How do you propose that ideas be tested?
qetzal · 12 May 2005
shiva · 12 May 2005
SteveF all you need to do is to break the vicious cycle of reasoning by telling us what else explains these similarities. And BTW please do not use the words 'intelligence' and 'design' unless you have explained them.
Nat Whilk · 12 May 2005
Steve:
Can't you make these predictions about laonastes aenigmamus simply because you know that it wouldn't have been placed in the order rodentia (or suborder hystricognathi) if it lacked the predicted characteristics?
Flint · 12 May 2005
I predict that everything learned about this animal, no matter what it may be, will be found compatible with design. Just like everything else.
Steve Reuland · 12 May 2005
People, you need to get your sarcasmometers updated. I thought SteveF's line about being interviewed for Nature was pretty funny.
Don Sheffler · 12 May 2005
Harold and Shiva, excellent points, both.
BUT notice SteveF was being WAY facetious. His mimicry of an IDer was so good that I was only alerted by the "blahblahblah", and then of course the great smirky appeal for getting an article in Nature.
Look closer, you're all wearing the same jersey. Now shake hands and have a Gatorade! Second half is about to start.
Steve Reuland · 12 May 2005
FitzRoy · 12 May 2005
bill · 12 May 2005
Apparently, Prof. Timmins had further observations to make:
"Let me just clean this femur for you," slurp, smack, and as he dabbed the corner of his mouth with a napkin Timmins continued, "and you can see the similarity to the chinchilla, although not as much meat."
"The similarities don't end there," the professor continued, reaching for a succulent haunch, "unlike squirrel that can be a little gamey, this rascal works well sauted or in a light cream sauce."
"I'm looking forward to future experiments with this unique little guy," Timmins mused, "I was thinking, wrapped in bacon with capers would be nice, or perhaps with a chipotle-raspberry glaze."
"Well, don't just sit there," he admonished, "we've got research to do! Pass the ketchup."
Sir_Toejam · 12 May 2005
"Does it taste like chicken?"
http://www.improb.com/airchives/paperair/volume4/v4i4/chicken.htm
looks like the data is inconclusive on that.
;)
harold · 12 May 2005
I don't know who first made this observation, but..."It is impossible to distinguish between a creationist and a parody of a creationist. Or at least, darn difficult.
Speaking of which, what happened to all the creationists? In my admittedly irregular lurking, I haven't seen a creationist post for a while.
Sir_Toejam · 12 May 2005
well, i think Dave Scott was banned for over-trolling. JAD is hanging out in his monkey cage. Michael is still lurking about. Heddle is also around somewhere, tho his posts usually get the boot.
other than that, I think a lot of them are at home, depressed about the fact that Kansas Kangaroo wasn't the waterloo they expected.
I'm sure they'll be back next week.
386sx · 12 May 2005
Sir_Toejam · 12 May 2005
"Speaking of which, what happened to all the creationists?"
oh, i almost forgot... FL is still hopping about too:
http://www.pandasthumb.org/pt-archives/001032.html#c29527
Henry J · 12 May 2005
Sir_Toejam,
Re "looks like the data is inconclusive on that."
Huh. Interesting. Going by that chart, it's most likely to taste like an "equivocal", whatever that is.
Henry
Dave Cerutti · 12 May 2005
But, this is perfectly understandable in terms of ID. It's a case of (squinting, looking like I'm thinking really hard for that big technical term) "common design!" Just as there is probably One Designer, He would have many similar designs, variations on themes He prefers. Another prediction of ID is borne out!
Bing · 12 May 2005
Henry J · 12 May 2005
Re "This would be in direct contradiction do the proposed unknown ID "designer" who would, it seems, tend to favor variety for the sake of, well, having a bunch of variety stuff."
Seems like that would conflict with the fact that we can arrange species in a mostly consistent nested hierarchical (or tree).
Henry
bill · 12 May 2005
Bing,
I thought smoke would overwhelm the delicate flavor, but it might work with pecan or apple wood...
Sir_Toejam · 12 May 2005
"Whatever happened to a simple hickory smoked rodent?"
bah, just batter 'em and deep fry.
Great White Wonder · 12 May 2005
Bing · 12 May 2005
Mmmmmmm......burgoo. That would be good, and it would appeal to the down-homely.
With all this talk about rodent recipes maybe we need to open up a separate section devoted strictly to menu planning.
Steve's Diner??
Sir_Toejam · 12 May 2005
I'm sure JAD would find his food references actually appropriate there.
Ken Shackleton · 12 May 2005
Moses · 12 May 2005
Evolutionist · 13 May 2005
Camels have red blood cells with nuclei.
There is a species of primate which converged on the teeth. It was once placed in a separate order. I cannot remember it's scientific name.
Rabbits have continuously growing incisors.
Steve Reuland · 13 May 2005
Russell · 13 May 2005
Bayesian Bouffant, FCD · 14 May 2005
Intelligent Design Theorist Timmy · 14 May 2005
Sir_Toejam · 14 May 2005
this really isn't even worth responding to, but since you insist...
aside from the fact that you have no clue what statistics are, apparently...
1. there is no "evolutionary algorithm" to begin with; natural selection does not "shoot" for a specific design. there is no "end target" in mind.
2. selection is not random, mutations can be, but even these aren't always completely stochastic. you would know this if you studied genetics.
3. all possible shapes are not relevant. If they were, then you might have some evidence for ID, as we would see lots of variants on blood cell shape like you propose. However, we don't, do we.
do you even bother to think before you post?
a much more relevant (and intelligent) question might have been:
"if we suppose that ovoid blood cells are an adaptation to desert conditions, why don't we see ovoid cells in other desert mammals?"
why don't you ask a question like that, so we think you at least aren't a complete troll?
Marek14 · 15 May 2005
I think that the Timmy's post was meant to be sarcastic...
Sir_Toejam · 15 May 2005
aww crap. there goes my irony meter again. gotta get that thing fixed.
Evolutionist · 15 May 2005
Posted by Steve Reuland on May 13, 2005 12:19 PM (e) (s)
"From what I can find, camels do not have red cells with nuclei. Or rather, they eventually lose their nuclei when mature like all mammalian red cells do."
Could have been confusion on my part. 'Apologies to everyone misled.
"Yes, and they also have three middle-ear bones and anucleate erythrocytes. The presence of these things in other mammalian orders is not relevant. I can predict that continuously growing incisors will be found in this new species because it is found in all rodents, even if it can be found elsewhere."
Well, yeah sure.
"This seems like it would be irrelevant in the same way that the last one was, even if it was clear what you were referring to."
I do not think it is irrelevant at all. You know, evolutionists of the old (non-darwinian, 19th. century on-) were willing to postulate a great deal of convergence.
Should one ever come by a character that was not predicted or "predicted," one could always claim that it's just convergence. "Irrelevance" might come down to intellectual dishonesty.
I recall there is a short description of this animal (primate) in G. G. Simpson's 1953 book, "Major Features-".
BTW, if the newly found animal did not have the features X and Z: in this particular case, the diagnostic characters of the order Rodentia, we would not call it a rodent, right?
So, in a way, your prediction cannot really come out wrong, it comes out post hoc.
Once you find the animal and examine it, you name it a "rodent" because it possesses the set of characters that are associated with them. THERE COULD NOT POSSIBLY BE A RODENT WITHOUT THOSE PRECIOUS RODENT SYNAPOMORPHIES (sp?)
What would be more interesting to hear predictions about, perhaps, is what additional characters the creature would have, or would not have.
It would also be interesting to know whether some of these "global" mammalian features have optimal adaptive value. Perhaps we come up with them so often, because they are the best solution?
Just playing the devils advocate here, for the giggles of it.
'I hope you can make sense of that.
Steve Reuland · 16 May 2005