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Mar 28 27 tweets 10 min read Read on X
Paleo artists often "shrink wrap" fossilized animal depictions

The T-Rex, Utahraptor, Triceratops—popular depictions of each of these animals shows skin so close to bone that it might be unrealistic

So let's shrink-wrap existing animals🧵

Can you guess what this is? Image
Preemptive note: All of this artwork is from C.M. Koseman, whose book (which is way more extensive than this thread) and some other material is linked at the end of the thread.

The last animal was a rhinoceros—the thing with the cooling heat sail!

Any idea what this animal is? Image
That last one might seem to be a dog, but it's actually a horse.

It's not so clear what this graceful beast might be. Image
The last picture was of a cow.

What about this monster? Its jaws can crush a steel car. Image
That metal-breaker was a hippopotamus.

This pack-hunting animal has a killer stare and wields a set of five switchblade claws on its forefeet. What might it be? Image
That was the house cat.

This one's a bit more mysterious, and clearly adapted to be a stealthy predator, right? Image
If you guessed that was a spider monkey, kudos to you. Future paleontologists might consider it an arboreal variation on humans, its cursorial relatives.

What of this one? It's not clear to future paleontologists if it's quadrupedal or bipedal. Image
That's the toad, which paleontologists might consider to be a long-legged forest ambler.

Any idea what this one is? Without preserved feathers, guessing might be hard! Image
If you guessed "Vulture", you're correct. But you probably didn't guess that!

You almost certainly won't guess this one. Image
That was a species of casque-headed hornbill, and paleontologists might suspect they use the casque for mating rituals. But we don't even know what they do with them in many cases today!

How's about this twofer? Note predator and prey: Image
If you guessed the "Swan" and the "Tadpole" (mistakenly believed to be a form of fish), then you were right.

What about this cute little predator? Image
That was an iguana, and due to fur being found on other small vertebrates like rats, it's assumed to have fur too.

Who's this courser? Image
That was a rabbit, but we wouldn't know it because posture is poorly preserved in fossils!

Now this one is simultaneously reassuring and disheartening. What might it be? Image
That's a python, and it might be assumed to have feet to support its body, much like the lizards its skeleton resembles. After all, we only have fragmentary remains!

Who's this guy? Image
That's a manatee. Remember, habitats change. A sea creature might be found in what's now a forested mountain. We might also only have remains like skulls.

This guy has a balloon-like facial sac. What might he be? Image
That's a bull elephant, and because no other animals have long, muscular appendages, he ends up with a face sac instead of his well-known trunk.

Time to dive underwater.

This one might seem to be a dolphin, but think outside the box. Image
It's a sperm whale, incorrectly believed to be a hunter of large pray. You know, like sharks.

What's this kelp forest stalker? Image
Why that's a bowhead whale of course! And as we know from its skeleton's extensible jaws, it must prey on animals as large as itself!

Going back to the land, who are we looking at now? Image
Because of its complicated nasal sinuses, the baboon might be assumed to have had venom glands and to have been a coursing hunter!

These guys have curved foot claws, sometimes serrated bills, and wings shorter than their legs. They must be vampiric! Image
But that's not the case, it's just an odd animal. It's a hummingbird, the only animal in its strange niche, and thus a prime candidate for misinterpretation!

Finally, who the hell is this? Image
That might be the first example of shrink wrapping and distorting the fossil record: the animal proposed to be pre-flood man, or Homo diluvii by Johann Jakob Scheuchzer in 1726

But though he thought he had evidence for the flood, he was describing the fossil of a salamander!Image
How we think about ancient animals is probably distorted by a tendency to shrink wrap their depictions and a desire to find function in form.

But much of what we observe in animals today, we still can't explain. Skin also drags, and feathers and fur abound (but not universally).
If you want to see more on this subject, I recommend the whole book, which contains many more illustrations and details for all of them.

Get it here: amazon.com/All-Yesterdays…
And if you're interested in speculation about possible futures, C.M. Koseman's All Tomorrows is spectacular. You can see it summarized on YouTube, here:
Koseman isn't the only person to have illustrated this issue either.

This opossum, for example, comes from the HowStuffWorks Tumblr:

Here's more: howstuffworks.tumblr.com/post/512612262…
imgur.com/a/BEz4r
Image
There is an error in describing sperm whales in the thread:

The issue is more that they would probably be thought of as behaving like sharks in the far future, but they're actually pretty social and frequently team players.
The artist for All Yesterdays and All Tomorrows has a Twitter account:

The opossum artist also has an account:

And the artist behind the inflated T-rex is apparently the creator of One Punch Man:
twitter.com/NixIllustration
twitter.com/NEBU_KURO

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More from @cremieuxrecueil

Dec 11
"A reminder: the US has the #1 most expensive healthcare system in the world, yet we rank roughly #42 in life expectancy."

Brian Thompson's murderer wrote that in his manifesto.

Both claims are bad. The first one, because America spends the most on healthcare because it's rich: Image
I don't mean Americans pay higher prices for the same amounts of care, but that Americans consume much higher volumes of care. They do more check-ups, get more screenings, take more tests, dose more drugs, get more surgeries... and so on!

You can predict spending from volumes:Image
Regarding the second claim, Americans have shorter lifespans because they're fat, violent, and reckless, not because of things that the health system can control.

And, if anything, when it comes to the things the health system actually controls, they generally do better!Image
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Dec 11
In Medicare Advantage, the government encourages insurers to pursue perverse incentives.

These see them overdiagnosing patients for conditions they often do not have, and which they don't recommend treating, because it means they can send the government a bigger bill. Image
Insurers have tried to claim that they don't do this, and that this data misrepresents the care they provide to patients they diagnose with particular conditions (like HIV!) because COVID disrupted care, but they're lying and it's too obvious. Image
Medicare Advantage does beat FFS on performance and on cost, and it certainly leads to more care for tons of people, but like every major program in medicine, it gets defrauded to the tune of tens of billions of dollars.

Oh well!
Read 4 tweets
Dec 10
Telling insurers they can't do denials is a surefire way to waste money on quack "cures" and to get millions of Americans devastatingly addicted to medications that end up killing them.

We know this is true because it's happened before.

Let's talk quacks. Thread about boobs. Image
Breast cancer is an unfortunately common condition worldwide.

In 2021, more than 270,000 American women were diagnosed with it and some 42,000 died from it and it affects almost 1-in-8 American women in their lifetimes.

In short, it's bad. Image
Each year in the U.S., more than 100,000 women undergo some form of mastectomy, often to treat, and sometimes to prevent breast cancer, among other things.

Unsurprisingly given how much everyone loves breasts and living, people have been seeking a cure for breast cancer.
Read 26 tweets
Dec 8
Thread of some surprising things that are older than other things

Notre Dame predates the Maori settlement of New Zealand Image
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Oxford is older than the Aztecs Image
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The Great Pyramid of Giza was completed before Woolly Mammoths went extinct Image
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Dec 7
Healthcare in the U.S. is more expensive than in peer countries primarily because Americans consume so much more care, not because the number of administrators is out of wack

One way we know this is through private equity

When PE firms buy hospitals, they drastically cut admin: Image
PE acquisition leads to a momentary decline in the numbers of core workers (nurses, physicians, pharmacists, etc.), but this fizzles out in the long run. Image
By cutting a massive part of the administrative bloat (they also cut admin wages!), PE firms are able to turn hospitals around without sacrificing anything for patients or providers.Image
Read 7 tweets
Dec 7
Americans consume so much healthcare that they don't need.

As it turns out, this is true in a lot of places, and we have excellent evidence that's the case.

Thread. Image
Britain has universal healthcare via their National Health Service.

In this system, the doctors are paid very poorly. Junior doctors—known as "resident doctors" since September of this year—have gone on strike about this several times in recent years.Image
In 2016, a dispute between the government and medical unions about new junior doctor contracts came to a head and the junior doctors didn't like the terms they were offered.

So, five strikes took place across all English public hospitals between January and April of that year. Image
Read 22 tweets

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