Las Cinco Muertes Discord
Las Cinco Muertes is an all-ages Discord server for fans of the Jurassic franchise! Jurassic Park, Jurassic World, Camp Cretaceous and beyond, come check us out if you want somewhere to chat with fellow fans!
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2025 on Tumblr: Trends That Defined the Year
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we're not kids anymore.
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@jurassic-james
Las Cinco Muertes Discord
Las Cinco Muertes is an all-ages Discord server for fans of the Jurassic franchise! Jurassic Park, Jurassic World, Camp Cretaceous and beyond, come check us out if you want somewhere to chat with fellow fans!

Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch β’ No registration required β’ HD streaming
Silent Afternoon
Prehistoric date
Marsh guardian ππ±
sort of a redraw of my βSpinosaurus marshlandβ, but again just very inspired by the GSL and I love drawing spinos β€οΈβ€οΈ
Art trade!

Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch β’ No registration required β’ HD streaming
I love this because like 99% of this kind of paleoart is patriarchal Man the Hunter type fantasies but these guys are just like βfuck it weβre outta hereβ
we have not changed.
The Flight Before The Mammoth. Paul Jamin. 1885
Behind The Scenes Of National Geographic. Teodor Vladimorov, Brandon Smith. 2011. read more
Utahraptor day!! I had a lot of fun with this one <3
2026 dinosaur prompt list
Crinoid stems and stars including a 6 pointed pentacrites and a pyritised ammonte
Admiring Disney's Dinosaur (2000)
Ik not too many are fond of this movie but I am due to how much the graphics were mesmerizing

Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch β’ No registration required β’ HD streaming
T minus 30 minutes until extinction :( here are some of my pictures from the last day of dinosaur's operation. So sad to see one of my childhood favorites go, but im looking forward to a capybara meet and greet in the tropical Americas!
Disney's DINOSAUR Unused Character Concepts
Disney's Dinosaur (2000) Aladar plush and lemur figures π¦
Disney's DINOSAUR Abandoned Scene The Grandparents Perish
John Brosio - Dinosaurs Eating CEO (2013) [2000 x 1833]

Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
Free to watch β’ No registration required β’ HD streaming
So were dinosaurs warm blooded or did they just decide to snipe that from mammals on the way to bird?
@excessively-english-jd
So the answer is - it's kinda complicated, lol.
Firstly, what is warm-bloodedness? This is a term not widely used in scientific literature anymore, since it's kind of nebulous and encompasses three different thermoregulatory phenomena:
Endothermy - ability to create and internally control one's own heat
Homeothermy - ability to maintain a consistent internal body temperature
Tachymetabolism - maintaining a high metabolism rate
It's possible to show a variety of combinations of these three phenomena, and it's also possible for the same organism to change between different states. Some cold-blooded animals show commonly warm-blooded features, or have found other ways to achieve thermoregulation [1, 2]. So, 'warm-bloodedness' is a pretty complex thing. In addition to that, a lot of these things are hard to assess in fossils, since we see only static snapshots, mostly of bone rather than the organs which would give better indications. But there are some things the fossil record and evolutionary biology can potentially tell us.
First, growth rates. Generally, it takes a lot of energy to grow, and especially to grow fast. Dinosaurs generally seem to have grown rapidly during their youth to reach adult size quickly (comparatively to reptilian growth rates), which can be seen through analysis of bones [3, 4]. This can be taken as evidence of tachymetabolism and endothermy, as the ability to generate massive energy for growth would imply an ability to generate massive energy for thermoregulation, too. However, this is not consistent across all dinosaurian groups, and analysis shows a variety of intermediate comparative rates, similar to mesothermic animals, so it's probably complicated [5].
Secondly, posture. Dinosaurs famously walk upright, with legs directly under the body, unlike the sprawled posture of most modern reptiles. In modern animals, only endotherms show upright posture and gait - no modern ectotherm has an upright posture [6, pg 23 onward]. Additionally, many dinosaurs had limb ratios which suggest adaptations to running and high-speed movement. This suggests an active lifestyle, which would have demanded higher metabolic rates and higher energy needs, which could enable endothermy [7].
Third, habitat. We have evidence for dinosaurs that lived in the cold polar regions of the planet - for this, they would have had to be capable of endothermy, otherwise they would not have survived the low ambient temperatures [8]. This implies that at least some dinosaurs were endothermic.
One of the most well known common features of warm-bloodedness is the four chambered heart. Fun fact, crocodiles also have four-chambered hearts!! This makes them an anomaly in the world of cold-bloodedness. It could therefore be possible that endothermy evolved early in the archosaur line (the larger family group dinosaurs evolved from) [9, 10] - this would imply that endothermy was in fact basal to Dinosauria. There is evidence for very active early crocodilians, and it is suggested that modern crocodilians have 'reverted' to ectothermy due to selection pressures of their hunting methods [11]. If this is true, perhaps dinosaurs were basally endothermic, but some later reverted to ectothermy for various reasons.
Incidentally, it's not necessarily accepted when exactly endothermy evolved in terms of mammalian lines, either. There seems to be some evidence for endothermy in early synapsids in the late Permian [12], some theories suggest a late-Triassic origin [13], and some suggest true endothermy didn't evolve until crown-group mammals in the mid Jurassic [14]. Conversely, some people think it may in fact be basal to all amniotes [15], with current ectothermy being a secondarily evolved characteristic! So who got there first? We don't know!!
So, to conclude an hour's worth of poking around at various sources - there is a lot of evidence to support that at least some groups of dinosaur were endothermic, particularly the coelurosaurs from which birds evolved. Certain groups meet various criteria for assessing 'warm-bloodedness', although not all do. There is some evidence to suggest that archosaurs evolved endothermy early in their lineage, and therefore that endothermy could in fact be basal to Dinosauria as a group.
Most importantly: it's kinda complicated, lol.
NEW ARTWORK TO START 2026
Here is "Deep Blue Buffet," commissioned by The Etches Collection. It features a bunch of fossil species from the museum and the Late Jurassic Kimmeridge Clay: a dead sauropod, "The Sea Rex" (probably Pliosaurus), Hybodus, Hypsocormus, Metriorhynchus, Aspidorhynchus, and lots of Allothrissops.