Sunday, October 18, 2009

My brain! The goggles, they do nothing!

So I picked up a copy of Here Comes Science by They Might Be Giants. It's a children's educational CD, but it sounds awesome - hey, there's a track called I am a Paleontologist! From the previews and reviews I heard and read, it sounds pretty cool.

However, there had to be Amazon's customer reviews to ruin my day.

(1 star) Here comes Religion

I bought this CD+DVD for my son since he really loves the first several TMBGs kids albums No, ABCs and 123s. I own just about every TMBG album out there... I even bought Why does the Sun Shine when it was a new release... So I was very surprised to find out that this CD which claims "Science is Real" and even has a song "Put it To the Test" about the Scientific method has one very religious song and two with lots of religious undertones.

I can think of thousands of things you could make songs about with Science without dedicating three songs to fairy tales about Monkeys. How about volcanoes? Lightning? Why Is the Sky Blue? At least they thru in the song "Davey Crocket in Outer Space" to show everything on their DVD is not, in fact, "Real". Davey Crocket has more to do with being "Real" than track 6 which is all about TMBGs world view and their belief and faith in a bizarre and crazy theory that never has been observed, and can not be put to the test.

Anyway, beware if you buy this that TMBG will try to indoctrinate your children with wacko religious views, which they will get plenty of in high school and college. Better to steer clear of this one, and maybe pick up a CD about Peter and the Wolf... it is considerably more about real science than "Here comes Science".


Remember, kids, applying the scientific method in any way is teh evul.

(BTW, the dreaded track 6 alluded to in the review is My Brother the Ape. No surprise there).

Wednesday, October 07, 2009

How to catch mountain vipers

Before saying anything, I'd like to point out that the images and general gist of this post were previously used for a mini-lecture at the U of M, mainly to test presentation-giving skills. Since the world has existed for long enough without a decent tutorial on mountain-viper capture, it was decided that it should go up here as well.

First of all, you may well ask, what is a mountain viper? It's a species of small viper endemic to Lebanon* and restricted to mountainous areas some 1400-1600 m up. It goes by the names Vipera bornmuelleri and Montivipera bornmuelleri; there is some disagreement about genus-level taxonomy but I won't go into that. As mentioned, it's endemic to a small country, and as such is endangered and poorly studied, with next to no info on venom toxicology and biochemistry, behavior, and whatnot. If you don't know what one looks like, see the picture, taken from here.

*And Syria too, I think, but the population there may have disappeared already.

So you want to study this animal, eh? There certainly are many good questions for research on this viper. However, as an endangered animal, you will need permission to collect it; affiliation with an institute of higher learning is preferred. And, of course, you'll need to be in Lebanon to do anything about it.

This is typical habitat for Vipera bornmuelleri - high mountains in Faraya, and the snakes are active with snow still on the ground, which says a lot about the hardiness of "cold-blooded" animals. This is May, and it's the mating season for our vipers, so they're more active and easy to spot. Yes, we were planning on going around and seizing libidinous snakes before they could carry out their amorous intentions. We were jerks.

But before you do any snake-catching, you need...

... a place to stay! Us "warm-blooded" animals need somewhere to keep us reasonably warm. This shrink-wrapped house does the job nicely, even with no hot running water and us half-freezing to death. Besides, there's a lovely view of the waterfall in the back, what.


And, after a place to stay comes sustenance. Contrary to popular belief*, vipers don't come out in midday, but rather in the morning. By the time the sun is at its hottest, the snakes retire to their cool dens between the rocks. Ergo, you must be up bright and early to get your snakes, and there's nothing like an early breakfast to get ready for snake-wrangling.

*Or, at least the popular belief I've been exposed to.

The sustenance in question here is man'oucheh, which is a sort of Lebanese pizza that people eat for breakfast. It's usually a pizzaish flat bread with thyme, sesame seeds, and olive oil on top. Or cheese on top. Or both. And you can mix it up with cucumbers, olives, lettuce, tomatoes, pickles, and all sorts. Some avant-guarde vendors are making hamburger man'ouchehs - neither fish nor fowl nor genetic abomination.

But I digress. I'm here to talk about snakes, for fhtagn's sake!

The last bit of essential equipment you will need in your arsenal will be a pair of reliable snake-handling tongs, like the ones* I am holding here. They're big, they're fat, they're chunky, and they make you feel safe from a species whose toxicity has not been formally evaluated.

*Dunno if it should stay pluralized.

However, these particular tongs proved to be way too big for the purpose of catching relatively tiny little vipers. Instead, test-tube tongs and barbecue tongs proved to do the job just as well, and they were far less unwieldy.

So you finally got a place to stay, an early breakfast, and appropriate equipment. On to the field!

This is typical mountain viper territory. In fact, one of our specimens came right from here. The snakes like to bask on limestone rocks, and dart for the nearest crevice when they sense someone approaching*. The correct approach is to walk softly** on tiptoes, and grab the snake with the tongs before it can bolt.

*Yes, Virginia, snakes are wild animals like any other wild animal, and their primary concern is to be left alone. They are not bloodthirsty monsters out for human lives.
**And carry big tongs.

Unless this happens. Sheep and goats are one of the main reasons why mountain vipers are going the way of the dodo; they're destroying their habitat, trampling them underfoot, and making a royal mess of things. They also make a mess of things if they show up while you're collecting; in this case, your day is ruined. Any potentially capturable snakes will head for the hills, and there's nothing left to do but count darkling beetles.

The sheep are entertaining though - note that the leaders of the flock are decked out with woolen hats so the shepherd can tell them apart. Oh, and the shepherd himself is entertaining, especially if he tries to sell you his homemade snakebite remedy.

When you finally do spot a snake, chances are you'll erupt into a frenzied burst of activity as you try to grab the snake without a) allowing to escape, b) injuring it, or c) allowing it to injure itself. Mountain vipers (as opposed to lebetine and Palestine vipers) are extremely testy, and a cornered viper will hiss and thrash about impressively, sometimes breaking its own spine in the process. Even in captivity, they will start puffing up and hissing whenever I passed by (something that never happened with the larger vipers). Caution is the key word here.

Once the snake is bagged, though, things will be a lot easier. A bagged snake has no visual reference and calms down instantly. It can then be safely transferred to a suitable holding vessel, and, eventually, an aquarium. Note that the jar in the picture has two snakes (one is below the big one in an aggressive S-loop) plus a twig that somehow got in during the general confusion that follows a snake capture.

Now that you've got your snakes, you can do whatever your heart desires, and answer whatever big questions you may have had about them. You did not know about how to capture mountain vipers before. And know you know. And knowing is half the battle...

"You are being shagged by a rare parrot"

Ouch. At least the kakapo looked really happy.



One can only hope that time-traveling biologists will not face the same problem. With dromaeosaurs.

Friday, September 25, 2009

A lot can happen while you're away

After weeks of sleeping off jetlag, moving into a new apartment, furnishing said new apartment, registering for new courses, finding out that the best courses aren't being offered, eating free food, studying the bones of the crocodilian skull, and finding a new laptop - I finally managed to get back online. And frankly, a lot has happened since then.

First of all, I'd like to welcome one of the coolest discoveries of 2009 - Spinophorosaurus nigerensis Remes et al. 2009, a gorgeously preserved (seriously, look at it) basal sauropod from Niger with what appears to be a thagomizer, of all things.

Raptorex kriegsteini Sereno et al. 2009 is another n00b, but rather less interesting (mainly because it's not a sauropod). It's also got the most pop-culturey name I've ever seen. It's worse than Jurassosaurus. (AP image from here).
What's more a familiar face - ok, a familiar name has fallen by the wayside. Goodbye Brachiosaurus brancai, hello Giraffatitan brancai. And the name's rather good too, IMHO. (pic from Wikipedia).
Enough dinosaurs for the time being. I'd also like to wish a happy belated birthday to H.G. Wells (born September 21, 1866) (image from Wikipedia)...... and, since I missed it in the general hubbub, happy belated birthday to H. P. Lovecraft (born August 20, 1890) (comic from The Unspeakable Vault of Doom)
Finally, a few unsolicited observations on the nature of this brave new world:
1. It's cold.
2. There are lots of squirrels (OVER NINE THOUSAAAND!!!1!) and they're everywhere, and they've apparently got rabies, and they cause power outages by poking their noses where they don't belong.
3. It's very cold.
4. The place is swarming with libraries, bookstores, and used-book stores. If I hang around long enough, I cold single-handedly solve the economic situation.
5. It's blisteringly cold, and everyone's going around in t-shirts and shorts while my teeth are chattering like wind-up plastic dentures.

I think I'm completely settled in, and will somehow ease back into a life similar to the one I have known. If you're reading this, I salute you.

Wednesday, August 26, 2009

So long, and thanks for all the fish

The more astute among you may have noticed a conspicuous lack of activity on my part. Er, more than usual. The last few months have been very busy, but I can safely say that it is all drawing to a close.

Yes, I am finally leaving my undergrad years and AUB behind. By Thursday morn, I will be leaving on a jetplane* for my paleontological PhD. It'll be a five-year program at the University of Michigan at Ann Arbor.

Hopefully, once I'm settled down and I've got things sliding along smoothly as a well-oiled piglet, I'll finally get around to drawing, painting and blogging the way I had gotten used to.

So it's not adieu, but more of au revoir. If any of you people is in the vicinity of Ann Arbor, I'll be around. Cheerio for now!

*Don't know when I'll be back again... Oh babe, I hate to go...

Tuesday, July 07, 2009

So I watched Revenge of the Fallen...

And there really isn't that much to say about it, really. It's too long. Most of the "characters" are irrelevant - getting introduced and then destroyed/forgotten soon after. The camera spends a disturbing amount of time ogling Megan Fox's, er, mammalian characteristics. The bad guys fail to conclusively kill any of the good guys, but they themselves are offed in increasingly violent ways. Geography is tossed out the window (Egypt... Jordan... what the hell is going on here?). A McGuffin bait-and-switch occurs roughly every twenty minutes.

Actually, I'm desperately trying to find good points to it. Ravage and Soundwave - 2 of the coolest characters both in the cartoon, and as new designs here - do not get enough screentime. Starscream and Megatron finally get to act the right way, and it's not fully explored. And... wait, no, there isn't anything else.

In short, it was a big, extremely dumb action movie. The first film was good (honest it was!) but this one left me several hundred brain cells short. Someone ought to picket Michael Bay's residence and get him to understand that movies require at least a shred of intelligence and common sense - suspension of disbelief can get you only so far, and explosions are no substitute for plot. Look at Lord of the Rings, the original Star Wars trilogy - hell, even the 1986 Transformers animated movie - they don't require complete mental shut-down to watch.

Here's hoping for the unlikely return of these guys in Transformers 17.5. They rocked.

(Image from Transformers wiki).

Monday, July 06, 2009

Waltzing matildae, and its friends

As ever, I still can't scrape together enough time to post regularly. At least I did one good thing recently - I graduated. So it's so long, AUB.

In the meantime, here's another spot of news. It's not going to make the headlines like Ida or Limusaurus did, but it's just as important in its own right, is of special value to the land down under, and (to me) is more interesting. Hey, those are sauropods we're talking about.

Until recently, Australia has had a sparse dinosaurian fossil record. This new discovery, however, is the most important find there to date, with two sauropods and "the most complete theropod skeleton so far found in Australia" (Hocknull et al, 2009). The paper is freely available on PLoS ONE.

The dinosaurs in question are the lithostrotian titanosaur Diamantinasaurus matildae (named after the song "Waltzing Matildae", though it's rather hard to imagine a titanosaur waltzing), the basal titanosauriform Wintonotitan wattsi, and the allosauroid Australovenator wintonensis. From top to bottom, the skeletals pictured below are D. matildae (A and B), W. wattsi (C), and A. wintonensis (D).

The paper also includes reconstructions of the dinosaurs, which is a nice touch. Again, from top to bottom: Australovenator, Wintonotitan, and a rather heavily-armored Diamantinasaurus. All three of these hail from the Middle Cretaceous (Albian-Cenomanian) Winton formation of Australia.

That's all fine and dandy, but what's the significance of these particular dinosaurs? Well, apart from their being an important dinosaur find in Australia, they represent some important paleobiogeographical insights.

Two separate analyses are presented for the sauropods, both of which resolve Wintonotitan as a basal titanosauriform and Diamantinasaurus as a derived lithostrotian (unusually, Diamantinasaurus has retained the hand-claw lost in most other derived titanosaurians). Wintonotitan's phylogenetic position remains relatively similar in both trees, but Diamantinasaurus was reported as either a sister taxon to Saltasauridae, or an opisthocoelicaudine and the sister taxon to Opisthocoelicaudia.

Cladograms above show two most-parsimonious trees for the sauropods and the strict consensus tree for Australovenator.

Australovenator, on the other hand, was resolved as an allosauroid and the sister taxon to Carcharodontosauridae. The allosaurid astragalus previously known from Australia (Molnar et al., 1981) was assigned to Australovenator, thus tying up a paleontological loose end. The existence of Australovenator suggests a broad geographical range for the ancestors of carcharodontosaurids, although true carcharodontosaurids have yet to be found in Australia.

In conclusion, despite some poor resolution where the sauropods are concerned, the findings indicate a much more diverse dinosaurian fauna in Australia than was previously known, and "a near global distribution for allosauroids basal to the Carcharodontosauridae" (Hocknull et al, 2009).

All images from Hocknull et al. (2009).


References

Hocknull, S. A.; White, M. A.; Tischler, T. R.; Cook, A. G.; Calleja, N. D.; Sloan, T.; and Elliott, D. A. (2009) New Mid-Cretaceous (Latest Albian) Dinosaurs from Winton, Queensland, Australia. PLoS ONE 4(7): e6190. doi:10.1371/journal.pone.0006190

Molnar, R. E.; Flannery, T. F.; Rich, T. H. V. (1981) An allosaurid theropod dinosaur
from the Early Cretaceous of Victoria, Australia
. Alcheringa 5: 141–146.

Friday, June 19, 2009

Book Review: Journey to Chandara

First of all... in case you haven't heard about it, do a quick search on Limusaurus, Limusaurus, Limusaurus, Limusaurus, and Limusaurus. While most of the news seems to revolve around its fingers, the fact that it's a herbivorous and beakily toothless ceratosaur from Jurassic Asia is at least as exciting. Yes, Virginia, there's a lot we still don't know about dinosaurs*.

*But we're working on it.

In the meantime, despite being out of university, I've got less time than I thought I'd have. At least the student visa and the apartment are clicking into place - but I most likely won't be able to go SVP this year.

As usual, when there isn't much else to say, what better than a book review? I recently have had the fortune to obtain a copy of Dinotopia: Journey to Chandara, the latest installment in James Gurney's Dinotopia series, and will review it right here and now.

Like the previous books, Journey to Chandara (or JtC) is a big, colorful, and lavishly illustrated book. As one commenter on this blog said, "James Gurney paints like God". And I'm inclined to agree. The artworks run the gamut from near-photorealistic to quasi-impressionist, with hints at a whole variety of distinct art styles in between (Alma-Tadema? Is that you?) If you're buying this book, chances are you're buying it to pore over the pictures, and Gurney certainly delivers here. The journey itself allows depiction of various "Dinotopianized" cultures, including Egyptian, Chinese, Tibetan, and Russian, which again adds to the diversity of the book.

Another welcome development is the appearance of feathered dinosaurs. While a good deal of ornithomimids are still scaly, there now are fluffy oviraptorids and therizinosaurs. Also, Witmer's work on dinosaur nostrils has apparently not yet caught up with Dinotopia, but that's more of a pedantic quibble than anything. Those dinosaurs really are believably interacting with humans.

If there is something to actually complain about, it's the story. The Dinotopia books are all light on plot, and this one is no exception. The "plot" is basically Arthur Denison Passing Through Dinotopia On His Way To His Goal, And What Befell Him There. That's it. I just spoiled most of the book for you (with the exception of Emperor Hugo Khan, which - I must admit - was a big surprise). It's the standard Dinotopia formula - book 2 tweaks it a little, but that's the general outline. Furthermore, interesting characters are introduced, and then forgotten a few pages later. And Arthur Denison has gone from a rational, scientific sort of person to someone who swallows anything he's told without argument (apparently, he really believes that those guys at Bilgewater are going to soar heavenward), and there is rather more "mystical" talk here than in previous books.

Finally, one thing that bugged me (pun not intended) was that the implications of a few things. In the first book, dinosaurs and (shudder) dolphins were the only sentient non-humans. In this book, though, we are treated to sentient singing butterflies. Does this mean that everything with a nervous system higher than a jellyfish's is capable of talking and thinking? Why are fish eaten here then? Do sauropods go out of their way not to step on ants? Arrrggghhhh...

In short, it's a glorious book. But the plot could have been fleshed out a little more, and some points should not be thought about too much. The pictures, though, are glorious, and worth getting the book for.

Dinotopia: Journey to Chandara and its cover copyright James Gurney.