That’s assuming it doesn’t lower its head to the ground like a cat
this post was submitted on 18 Oct 2023
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Which it would probably do because I don’t think it can pump stuff 10 meters high with its stomach
I dunno. Reverse peristalsis can be pretty quick and result in a pretty steady flow. I'd imagine they'd have to adapt to develop that regardless of how they're going to expel things, similar how giraffes are able to chew their cud despite their long damn necks. Wouldn't be projectile vomiting as we describe it though. In the end their entire neck is a pump.
Good point. However, the height difference between giraffes and Brachiosaurus is still quite significant. I am not well versed enough in the exact mechanics of this but maybe it won’t scale well. Additionally, the neck of Brachiosaurus was probably far more flexible than that of a giraffe due to the higher number of vertebrae so they may be able to lower their necks more easily which reduces the pressure to evolve powerful pumping mechanisms.
Or get on an old family rug first like a cat
As I recall there was a study of its neck bones that suggested the lowest it could tilt its neck was 6m above the ground or something.
Sounds inconvenient for drinking
My cat only throws up on my bed, preferably right beside my pillow, no floor involved.
Considering how much mass/volume could be in the stomach, it still be potentially lethal.
It must have had really, really long nerves. I wonder what the ping time from its brain to its legs was
Now do the forces required to push all that vomit up to 14m
The forces vary depending on how fast you move it up. You might be thinking of energy not force, as in joules not newtons.
To elaborate, imagine you wanted you were playing air hockey, you have to hit the puck alot harder to move it fast than to move it slow even though both will reach the other side
Ok, now calculate the energy required to type that reply, nerd.
But seriously, fair point. I don't know physics.
Mgh=50149.81=6867 joules
So about the same eneegy it takes to keep a 6 watt lightbulb on for 19 minutes
Edit: oops i see you meant reply, thats a tough one that i cant really answer on the toilet. But using the formula work= F*D and some simplifying assumptions you could do it yourself
(Work is the physics term for energy needed)
Some things I felt I should mention:
Firstly and most comically: Some sauropods swallowed rocks to aid in digestion, which are called gastroliths. While I only know of diplodocoids (think long and low sauropods) having used gastroliths, Brachiosaurus and other macronarians (tall sauropods, as seen in the picture) might have used them, although I'm not certain on that, as there is some differences in diet between diplodocoids and macronarians. If so, their vomit might have been even more dangerous, although the gastroliths are stored in their own organ iirc. (Just looked it up, there is gastroliths found that probably came from Cedarosaurus, which is a macronarian that was pretty closely related to Brachiosaurus, link: https://fr.copernicus.org/articles/18/1/2015/fr-18-1-2015.pdf)
Secondly and most nitpicky: The picture shows fairly large dromaeosaurs, which don't have a record of existing in the Late Jurassic when Brachiosaurus existed. Now, the fossil record is very incomplete, with one estimate putting the known number of Tyrannosaurus rex specimens at about one billionth of the amount that lived over the 3 million years that species was present. But there are no dromaeosaurs that I know of from the Late Jurassic, let alone the Morrison Formation where Brachiosaurus is found, which is one of the best fossil sites for dinosaurs. It isn't impossible, the split between bird and dromaeosaurs was before the Late Jurassic, but it is highly unlikely, especially in the Morrison, as there were a bunch of predators that would have competed with a large dromaeosaur. Again, this last one is very nitpick-y. Still a funny image though
also, they'd definitely bend over to puke if that's something their bodies were even capable of.
Old Faceful
Why are there bones in an herbivore's vomit?
I saw it more that the vomit is so destructive that it obliterates the dinosaurs below straight to their bones.
Highly acidic, chews right through soft matter in seconds. Would love that J.P. sequel
They eat bones occasionally to aid digestion or induce vomiting to clear their stomachs of indigestible material.
This information may or may not be false.
Is there some rule of thumb that converts kinetic energy into impact force for fluids?
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