Michael Deak

Michael Deak

@slothfultyrant.bsky.social

Adjunct professor at Youngstown State University who specializes in theropod and sloth thermoregulation and integument. He/Him, all opinions are my own.

176 Followers 96 Following 235 Posts Joined Nov 2024
4 days ago

We don't know if T. rex engaged in actively feeding its offspring. Work by @arctomet.bsky.social has suggested that the juveniles were eating different prey items than the adults. Definitely not impossible, but there's a lot of uncertainty.

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5 days ago
Behavioral implications of an embedded tyrannosaurid tooth and associated tooth marks on an articulated skull of Edmontosaurus from the Hell Creek Formation, Montana Because teeth can be taxonomically distinct, particularly for non-mammalian carnivores such as non-avian dinosaurs, teeth that have broken off in the bone of another animal during feeding, predation o...

T. rex likely started processing a large carcass on the spot as opposed to carrying it for a long distance. peerj.com/articles/207...

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1 week ago
Rebor Beelzebufo Rebor Beelzebufo Rebor Beelzebufo

IT IS FRIDAY MY DUDES

A look at the 2025 Rebor #Beelzebufo is now up at the TetZooTowers_collection TikTok, check it out! Yup, #PrehistoricPlanet similarities might be apparent... vm.tiktok.com/ZNRmvW6K7/

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1 week ago

l just watched the first episode of #TheDinosaurs on Netflix, and already found 3"subtle" Jurassic Park references.

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2 weeks ago
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It is very late summer in North America during the Jurassic period, and ginkgo leaves have begun fallen upon this group of Stegosaurs, one of which carries on its thagomizers an important reminder that life in this era was cheap, and natural selection acts at incredible speeds.

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3 weeks ago
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Well... the thing is out. Spinosaurus mirabilis, here we go again!

#paleoart #sciart #spinosaurus

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3 weeks ago

Let us have our fun!

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3 weeks ago
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Scimitar-crested Spinosaurus species from the Sahara caps stepwise spinosaurid radiation We describe a close relative of Spinosaurus aegyptiacus, the sail-backed, fish-eating giant from nearshore deposits of northern Africa. Spinosaurus mirabilis sp. nov., discovered in the central Sahara...

Wake up, a new species of #Spinosaurus just dropped! www.science.org/doi/10.1126/...

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3 weeks ago
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After looking through this paper, I can only think of this Brian Engh piece. Literally one of my favorite pieces of T. rex paleoart in recent years.

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3 weeks ago

The AI image-ridden slides do not fill me with a lot of confidence....

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3 weeks ago
Behavioral implications of an embedded tyrannosaurid tooth and associated tooth marks on an articulated skull of Edmontosaurus from the Hell Creek Formation, Montana Because teeth can be taxonomically distinct, particularly for non-mammalian carnivores such as non-avian dinosaurs, teeth that have broken off in the bone of another animal during feeding, predation o...

The first time (to my knowledge) that we can confidently say that hadrosaur's cause of death to be a tyrannosaurid attack. Very exciting!
peerj.com/articles/207...

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1 month ago

A great podcast about the Horner debacle, and the mistreatment of women in the field. The account of the Hunyh incident and the "it's not my place" response was truly haunting.

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1 month ago

That sexual selection is one of the primary drivers in evolution is well established. Studies of Mesozoic #dinosaurs and #pterosaurs, however, have been dominated by the view that the variation, extravagance and diversity seen in these animals is not due to the pressures of sexual selection, but...

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1 month ago
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The null hypothesis suggests you weren't in North Dakota with Epstein, Maxwell, and Kennedy Jr. Let's test this hypothesis looking at the "actual evidence". I'd say the null hypothesis has been rejected.

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1 month ago

Late to the party, but I had the best undergrad advisor in Scott McKenzie. A man who puts his students first and is passionate about Paleontology, and fosters a sense of wonder and curiosity to the public. Ironically, he was mentored by Don Baird, as was Horner.

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1 month ago
First, I want to be very clear that I am not speaking in any official capacity for the Society of Vertebrate Paleontology (SVP) with this post. I’ll be speaking of the society of course, but this is not an organizational official statement. I’m also not going to speak super directly to the details of the Epstein Files revelations that erupted over the weekend and still continue. I believe the stories I’ve heard from numerous female SVP members about other behaviors, words and actions by accused individuals and many other men. There should be a robust Ethics Committee investigation that includes the possibility of bannings and revocations as potential consequences for a totality of offenses both recent and otherwise. This goes for any SVP member, not just those with outsized influence or media presence.

Communications Committee (which I am co-chair of) was not involved in crafting the statement released by SVP earlier this week. We are discussing how to better integrate relevant committees in future situations that require precise, expeditious official commentary from SVP. While the technical legalistic language in that statement is correct, IMO it severely missed the mark on understanding and acknowledging the hurt and anger amongst membership. The community response appeared to be in part driven by decades of women in membership feeling their real experiences with harassment, objectification, and assault continue to be minimized and ignored. Due to structural inequities, legal fears and power imbalances we especially see influential repeat-offenders relegated to whisper-network warnings rather than face any true professional or personal consequences. As anyone with a shred of empathy can understand, this has over time led to intense and even angry frustration, members quitting the society, and others avoiding membership altogether. Despite robust cultural and operational changes within SVP over the past 20+ years, the outcomes we are experiencing are still deeply problematic. If the outcomes are chronically proven inadequate, that means the systems producing those outcomes are inadequate, and should be fixed where appropriate or thrown out in favor of a complete rebuild. I have not arrived at these conclusions lightly. I have been in private conversation with current and former SVP members (mostly women) nearly constantly since this past Sunday. Everyone from students who only joined very recently, early careers expressing dismay at the silence of more senior figures, established mid-career members, and those who have left membership in frustration. The act of leadership relies most on listening, and I’ve been doing my best to do that where I can this week. In light of this assessment, and with the help of extensive dialogue which I am immensely grateful for, I have submitted the following action items to SVP leadership to be included in discussion at an upcoming followup town hall meeting: 

1) Strongly consider an overhaul to our Code of Conduct rules regarding interpersonal behavior, ethics reporting, and ethics violation policies within the bounds of technical legal protections required for all parties. This includes but is not limited to banning from meetings, banning from society membership, and revocation of Society awards as official potential consequences. If our current systems for dealing with abusive or unprofessional behavior are not getting the job done, we should fix them.

2) Assemble comprehensive, expansive strategies that SVP leadership can implement with the goal of addressing the underlying unprofessional actions and attitudes that lead to misconduct behaviors propagating in our community. In function, the goal is to educationally inoculate against toxic and unprofessional behaviors. 3) SVP will produce a media series that guides members through the full start-to-finish ethics violation reporting and administrative action processes. We believe empowering membership with this information will help us all hold each other accountable and make SVP as safe and welcoming as possible to those wishing to contribute to the betterment of our professional community. (This one is more directly under my control and thus I can speak more assertively about it.)

4) SVP should provide quarterly progress updates on initiatives to address member safety as well as violation accountability procedures. This *would not* mean a change in policy for public disclosures on the details of ongoing ethics violation investigations. It will mean providing members with updates on process overhauls and finding new ways to provide allowable transparency to membership without creating legal vulnerabilities. 

We are a society of incredibly smart, talented, generous and hardworking people.  Circumstantial excuses do not protect our community members. These chronic problems are fixable if we have the collective will to do so. 

Thanks for your time if you made it all the way through. I look forward to working with anyone with good-faith interest in making the changes our organization clearly still needs.

Regarding events of last week in SVP and the wider vertebrate paleontology community.

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1 month ago

Good times.

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1 month ago
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Cellular-level preservation of cutaneous spikes in an Early Cretaceous iguanodontian dinosaur - Nature Ecology & Evolution A juvenile iguanodontian from the Lower Cretaceous of China preserves both spikes and scales in its skin that are different from integumentary structures in either non-avian dinosaurs or extant squama...

Yet another strike against the "large dinosaurs can't have any fibrous integument" narrative.
www.nature.com/articles/s41...

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1 month ago

Having encountered the great bearded one twice during my undergrad years, he is certainly eccentric, but otherwise an absolute blast to talk to.

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1 month ago
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A mammoth drawings from Arcy-sur-Cure cave,France.
Outlined in red-ochre, this rotund, tuskless mammoth looks like a juvenile.
At 28,000 years old, a product of the Gravettian culture, one of the oldest examples of cave art in Europe.
The saddest mammoth from the Ice Age. 🦣😢🏺
#MammothMonday

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1 month ago

Horner is famous in where I dig in Montana for telling a little girl that brought him a fossil to identify something to the effect of : I’d rather this thing turn to dust in the badlands than have you get it

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1 month ago

Much in the same vein as to how the "tyrant lizard king" was described by a man who was a bully and a tyrant (among other things) in his own right.

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1 month ago

I find it highly ironic that history will speak of how the "good mother lizard" was described a pedophile. A pedophile who didn't even discover egg mountain and hogged the credit might I add.

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1 month ago
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The woolly mammoth, a mother and her child, venture past glaciers impossibly vast for today's world.

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1 month ago
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What Really Happened at Tanque Loma?

#paleoart

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1 month ago

Completely unsurprising as many have already said. Begging MOR to distance themselves from Horner's legacy akin to what AMNH has done with Henry Osborn.

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1 month ago
YouTube
S11E10 Spinosaur Tales oo woo oo YouTube video by iszitube

They kind of already did it with Duck Tales in the form of this thumb nail from @iszi.com and @davehone.bsky.social's podcast. youtu.be/l_bclqGr8Hk?...

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1 month ago
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*In epic movie guy voice*: "From the authors of the two greatest tyrannosaur books of the past decade comes...."

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1 month ago

A very good review of a very good book. Plus, a lot of good information said on tyrannosaurid integument and nuances on how it would impact their thermoregulation.

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2 months ago
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This is not a model. This is a "fossilised" taxidermy of a Woolly Rhino, discovered in Starunia mine in Carpathian Poland (now Ukraine) in 1929. Dating to the Pleistocene, its exquisite preservation is owed to a mixture of brine, oil and clays. 🧵

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