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HodariNundu — Twinkle Twinkle Stellasaurus
#animal #beast #ceratopsian #ceratopsid #cretaceous #dinosaur #dinosaurs #einiosaurus #fluorescence #glowing #monster #stars #styracosaurus #hodarinundu #stellasaurus #bioluminiscence
Published: 2020-05-05 07:21:47 +0000 UTC; Views: 8791; Favourites: 450; Downloads: 0
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Description
No pueden ponerle Stellasaurus a un dino y esperar que no lo dibuje cubierto de bioluminiscencia (¿o es fluorescencia?)
Cuidado al pasear por los bosques del Cretácico, no son estrellas todo lo que brilla, y éste bicho, presumiblemente un descendiente de Styracosaurus y ancestro de Einiosaurus, probablemente habría sido muy peligroso si se le sorprendía...You can´t name a dinosaur Stellasaurus and expect me not to doodle it spangled with bioluminiscence (or is it fluorescence?).
Beware, traveler in the Cretaceous forests! Not everything that shines is a starry sky, and this animal, presumably a descendant of Styracosaurus and ancestor to Einiosaurus, would've been quite dangerous if startled...
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Comments: 48
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HodariNundu It appears the Whole ''pack'' thing about the raptors; is invalid now
phys.org/news/2020-05-jurrassi…
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Hmm. Well, there was already a study before this which suggested juvenile Deinonychus had different proportions from the adults' and were possibly even capable of limited flight, which was probably an advantage they had to stay out of reach of the adults, sort of like young Komodo dragons living up in trees to avoid the cannibalistic older ones. If so then it is to be expected that they didn´t mingle with the adults and fed on different things when small. But who's to say that they didn´t change their MO once they reached adult size? Yes, it would be rather unusual, but, who knows? There's evidence from other kinds of dinos that juveniles gathered together, apparently living apart from the adults (I believe some ankylosaurs, ornithomimosaurs and maybe others?), so maybe adults of some other dinos did the same? Pack-hunting need not imply the pack cared for/fed the young. Crocodiles are known to hunt cooperatively at times, but that's adult crocs; the babies feed on different prey and aren´t normally fed by the adults. In fact, they risk being eaten, too!
What I'm getting at is that it wouldn´t be impossible for some raptors to hunt in packs alright, without necessarily being a family unit as in wolves or lions; more like an opportunistic aggregation that would benefit them all.
I also remember reading about dromaeosaurid trackways from somewhere in Asia (China, Korea, both?) which shows several animals apparently walking together in the same direction- certainly not evidence of pack hunting, but shows they weren´t necessarily solitary animals, or at least not all the time.
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I remembered! I believe it was the artwork ''captain hook & peter pan!'' -- I did not expected superprecocial behaviore from dromaesauridae species at first; I knew some species of sauropods are compotent precocials, like some diplodocoid/diplodicidae? species when they were juveniles but the proto-avian family ? It was a suprise!
I believe occasional 'gatherings' might be possible; as all solitary animals do that; but coordinated social behaviore seems unlikely; as no known active predator or large carnivourous avians form coordinated units; they merely form pairs at the best possiblity; of course exceptions like vultures, antartica gulls; and gluttonous giant pelicans; but they are deemed not the norms. Indeed some crocodilian species shown occasional social behaviore like nile crocodiles (I believe I heard some human hunting crocodiles formed groups; but I have no verification) but others, like Saltwater crocs are extremely territorial, I think raptors were likely closer to avians, in comparission to other theropod groups.
I think social behaviore might have varied from Species to Species, similiar to how some sauropods actually shown potential parental care possiblities where others were superprecocial, but for the real version of JP raptors? Deinonychus'es, it appears highly solitary lifestyle is favored; similiar to modern leopards, largest avians like cossawaries.
I have seen a comment that the imprints on the trackway could be a popular migration route and used actively by different specimens at different times; but all their tracks printed on the same route; but everything is possible; especially considering how the behaviore might potentially have differentiated from species-to-species
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That right there is why I am not so fond of the "this is rare among modern birds, so it's unlikely for non-avian dinos" logic. We have now good evidence that a variety of dinos (including apparently enantiornithes, PLUS pterosaurs) were seemingly superprecocial, despite the fact that today, we only have megapodes (as far as I remember) as superprecocial birds. So what is rare today may not have been rare back then.
It reminds me of when I wrote a well known paleontologist asking if anyone had considered the possibility that alvarezsaurs were specialized egg-robbers. His answer was along the lines of "no because we don´t see that happening today". Never mind that today's major ecosystems are dominated by mammals, not scores of egg-laying reptile things.
I say, we should keep an open mind. And I totally agree with you that there must have been variation even within the same group. The paper does mention Utahraptor as a possible example of pack-living. You just never know.
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Agreed. I am quite suprised to see that there is a category for the precocial and superprecocial avians; called nidifugous birds. There are several examples for precocial to superprecocial avians; like California quail's and killdeers.
Exactly! Some paleontologist's are in the wrong to interpret that prehistoric habitats shouldn't bare resemblance and/or having equavilents today
Yes; the Deinonychus maybe acted like highly solitary leopards and cassowaries; meanwhile the Utahraptors lived like wolves and lions; highly possible; as the highly differentiated behaviore between relative species exists; even domesticated subspecies of cats act differently from wild mountain cats only in a mere few thousand years of co-habitation.
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Did tyrannosaurs use their severed heads as night lights for their children?
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¡Sí, desde que salió aquel estudio sobre los camaleones, no he dejado de pensar en ello!
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Splendid work. The design for Stellasaurus is really interesting, bioluminescence is a unlikely but interesting design trait.
It is kinda unfortunate that it and Adalatherium got over shadow by a certain iconic Egyptian piscivorus theropod.
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Yeah, bad timing there
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Bio lights on a dinosaur? Hmmm, interesting idea...
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Well why not? At the very least biofluorescence is a possibility
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No reason why not at all!
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Stellasaurus and Adalatherium watching as no one gives a shit about them due to spino tails
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Lots of people were pretending they were more excited about them than about Spino tho
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Indeed I feel sorry for him to be overshadowed by Spinosaurus in the latest news , and to think that somewhat actually called him a reverse Einiosaurus makes it interesting as well.Anyway, your take on a bioluminescent type is quite impressive, also great work!
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Yeah, poor Stella
And thanks!
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Bioluminescence or fluorescence? Are the lights the result of living organism in the skin (bioluminescence) or are they the result of the dinosaur's skin having absorbed light (fluorescence)? That's the question everybody would want to know the answer to.
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Bioluminescence is a chemical reaction
The other is a generated through bacteria or some shit
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Nope, biofluorescence has to do with absorbed low wavelength light which is then emitted back as glow, and bioluminiscence is from a biochemical reaction in the creature's body (in some cases, through bacteria).
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Yeah I had a D in science
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They were awfully generous
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How about I take my D and shove it up your A?
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Speaking of Homosexual remarks
What's your opinion on Tiger King?
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I have not seen it, and have no interest in seeing it.
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He's just a crazy gay redneck is all
With big cats, I'm amazed they haven't torn into him as long as he had them cause he made every textbook error when around big cats
Zookeepers would be laughing at him
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Jajajaja parece un dino lvl 40 de Jurassic World the game
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No se, solo se que es lo que parece
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