Caley Orr
@caleyorr.bsky.social
Associate Professor | CU School of Medicine & CU Denver Anthropology | Paleoanthropology, Primate Morphology, Teaching Anatomy, Noisy Rock & Roll, Felis catus | Research: ucdenver.academia.edu/CaleyOrr
Reposted by Caley Orr
Iliopsoas muscle plays major role in lumbopelvic posture & gait in humans, & its distal tendon is often implicated in hip pain. Our latest project examined its tendon morphology measuring landmarks to understand how tendon shape relates to surrounding bone architecture
www.cureus.com/articles/438...
www.cureus.com/articles/438...
January 14, 2026 at 3:30 PM
Iliopsoas muscle plays major role in lumbopelvic posture & gait in humans, & its distal tendon is often implicated in hip pain. Our latest project examined its tendon morphology measuring landmarks to understand how tendon shape relates to surrounding bone architecture
www.cureus.com/articles/438...
www.cureus.com/articles/438...
Reposted by Caley Orr
The first article from the Cambridge Prisms: Extinction special issue on 'Hominin Cultural and Biological Extinctions', guest edited by @jjrowan.bsky.social and Dr Alastair Key, has just been published.
A continuous record of early human stone tool production: doi.org/10.1017/ext....
A continuous record of early human stone tool production: doi.org/10.1017/ext....
January 14, 2026 at 1:05 PM
The first article from the Cambridge Prisms: Extinction special issue on 'Hominin Cultural and Biological Extinctions', guest edited by @jjrowan.bsky.social and Dr Alastair Key, has just been published.
A continuous record of early human stone tool production: doi.org/10.1017/ext....
A continuous record of early human stone tool production: doi.org/10.1017/ext....
Fantastic! There's not much postcranial material known for Homo habilis or other early Homo species, so this is a very welcome addition to the record. Those are long forearms!
KNM-ER 64061, most complete Homo habilis skeleton yet (Koobi Fora) shows primitive limb proportions: long forearms, thick cortices, small body mass & ~160 cm stature. Upper limbs like early Homo, but proportions differ from H. erectus
Grine et al anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Grine et al anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
January 13, 2026 at 1:46 PM
Fantastic! There's not much postcranial material known for Homo habilis or other early Homo species, so this is a very welcome addition to the record. Those are long forearms!
Reposted by Caley Orr
Deep Sulawesi cave dig could reveal overlap between extinct humans and us ⛏️🇮🇩 phys.org/news/2026-01...
Deep Sulawesi cave dig could reveal overlap between extinct humans and us
Could Homo sapiens and an archaic and now-extinct species of early human have lived alongside each other on the Indonesian island of Sulawesi more than 65,000 years ago?
phys.org
January 9, 2026 at 6:53 PM
Deep Sulawesi cave dig could reveal overlap between extinct humans and us ⛏️🇮🇩 phys.org/news/2026-01...
My dad always said, "Kids are dumb." Comparative evidence!
Risks young chimps take as they swing through the trees underscore role of protective parenting in humans
Adolescents are known for risky behavior, with teenagers in the U.S. more likely than younger children to die from injury. But what's responsible for this uptick in risk-taking around puberty?
phys.org
January 7, 2026 at 8:04 PM
My dad always said, "Kids are dumb." Comparative evidence!
"The ThI-GH hominins...provide strong evidence for an African lineage ancestral to our species. These fossils offer clues about the last common ancestor shared with Neanderthals and Denisovans."
Early hominins from Morocco basal to the Homo sapiens lineage - Nature
New hominin fossils from the Grotte à Hominidés at Thomas Quarry I (ThI-GH) in Casablanca, Morocco, dated to around 773 thousand years ago are similar in age to Homo antecessor, yet are morphologicall...
www.nature.com
January 7, 2026 at 5:27 PM
"The ThI-GH hominins...provide strong evidence for an African lineage ancestral to our species. These fossils offer clues about the last common ancestor shared with Neanderthals and Denisovans."
Reposted by Caley Orr
30 years ago today, December 31st 1995, the last ever Calvin & Hobbes comic strip was published. Even now, I still find it so poignant & moving.
December 31, 2025 at 2:32 PM
30 years ago today, December 31st 1995, the last ever Calvin & Hobbes comic strip was published. Even now, I still find it so poignant & moving.
Reposted by Caley Orr
There’s nothing wrong with common sense until you dig a little and learn that common sense is wrong. Thanks @profgalloway.com for providing a great example of common sense that I’ve gotten a kick out of doubting. Thanks @prosocialworld.bsky.social for hosting.
www.prosocial.world/posts/whats-...
www.prosocial.world/posts/whats-...
What’s True About the Evolution of Men’s Greater Average Height?
Why men are taller than women may have nothing to do with testosterone—or sexual selection.
www.prosocial.world
December 30, 2025 at 9:54 PM
There’s nothing wrong with common sense until you dig a little and learn that common sense is wrong. Thanks @profgalloway.com for providing a great example of common sense that I’ve gotten a kick out of doubting. Thanks @prosocialworld.bsky.social for hosting.
www.prosocial.world/posts/whats-...
www.prosocial.world/posts/whats-...
Reposted by Caley Orr
And here’s my other human origins countdown to close out the year! 🏺🧪
10 things we learned about Neanderthals in 2025
Findings about our extinct relatives, the Neanderthals, continue to surprise us, especially those from 2025.
www.livescience.com
December 30, 2025 at 9:31 PM
And here’s my other human origins countdown to close out the year! 🏺🧪
It turns out that the Gen Z lovechild of Kyuss and Babes in Toyland was the sound I needed for 2025. 🔥
Die Spitz - Full Performance (Live on KEXP)
YouTube video by KEXP
youtu.be
December 30, 2025 at 6:28 AM
It turns out that the Gen Z lovechild of Kyuss and Babes in Toyland was the sound I needed for 2025. 🔥
Reposted by Caley Orr
Human Evolution in Backwaters, Satellites, and Republics: How Political Change Impacts Paleoanthropology in a Shifting Landscape of Winners and Losers onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
December 29, 2025 at 2:45 PM
Human Evolution in Backwaters, Satellites, and Republics: How Political Change Impacts Paleoanthropology in a Shifting Landscape of Winners and Losers onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Caley Orr
One of the two human evolution news roundups I wrote to close out the year! 🧪🏺
10 things we learned about our human ancestors in 2025
Findings about our human ancestors continue to surprise us, especially those from 2025.
www.livescience.com
December 26, 2025 at 3:07 PM
One of the two human evolution news roundups I wrote to close out the year! 🧪🏺
Reposted by Caley Orr
Fully-Funded PhD in Human Origins – University of Tübingen, Germany.
PhD role in archaeology & paleoecology.
Eligibility: Master’s degree.
Deadline: 31 January 2026.
Apply: higherjobz.com/fully-funded...
#AcademicJobs #ArchaeologyJobs #Paleoanthropology #GermanyJobs @unituebingen.bsky.social
PhD role in archaeology & paleoecology.
Eligibility: Master’s degree.
Deadline: 31 January 2026.
Apply: higherjobz.com/fully-funded...
#AcademicJobs #ArchaeologyJobs #Paleoanthropology #GermanyJobs @unituebingen.bsky.social
Fully-Funded PhD in Human Origins at Tübingen, Germany | HigherJobz
Apply for a fully funded PhD in Human Origins at University of Tübingen, Germany. Eligibility is master’s degree. Deadline: 31 Jan 2026.
higherjobz.com
December 24, 2025 at 12:12 PM
Fully-Funded PhD in Human Origins – University of Tübingen, Germany.
PhD role in archaeology & paleoecology.
Eligibility: Master’s degree.
Deadline: 31 January 2026.
Apply: higherjobz.com/fully-funded...
#AcademicJobs #ArchaeologyJobs #Paleoanthropology #GermanyJobs @unituebingen.bsky.social
PhD role in archaeology & paleoecology.
Eligibility: Master’s degree.
Deadline: 31 January 2026.
Apply: higherjobz.com/fully-funded...
#AcademicJobs #ArchaeologyJobs #Paleoanthropology #GermanyJobs @unituebingen.bsky.social
Reposted by Caley Orr
A legend🫡🥃
Gave the best 1 minute bass guitar lesson ever 🎯👌✊
Asked about his style compared to others;
“The basic difference is most bass players sound like this. Whereas I sound quite different!”
(Cranks up the amp to maximum, plays and faces melt 😂)!
#Lemmy
youtu.be/FT4nWq3sI7s?...
Gave the best 1 minute bass guitar lesson ever 🎯👌✊
Asked about his style compared to others;
“The basic difference is most bass players sound like this. Whereas I sound quite different!”
(Cranks up the amp to maximum, plays and faces melt 😂)!
#Lemmy
youtu.be/FT4nWq3sI7s?...
December 24, 2025 at 1:49 PM
A legend🫡🥃
Gave the best 1 minute bass guitar lesson ever 🎯👌✊
Asked about his style compared to others;
“The basic difference is most bass players sound like this. Whereas I sound quite different!”
(Cranks up the amp to maximum, plays and faces melt 😂)!
#Lemmy
youtu.be/FT4nWq3sI7s?...
Gave the best 1 minute bass guitar lesson ever 🎯👌✊
Asked about his style compared to others;
“The basic difference is most bass players sound like this. Whereas I sound quite different!”
(Cranks up the amp to maximum, plays and faces melt 😂)!
#Lemmy
youtu.be/FT4nWq3sI7s?...
Reposted by Caley Orr
Las diferencias en dimensiones coronales de los molares de tres cráneos de Dmanisi llevan a Nery et al a sugerir dos taxones: Homo georgicus para el cráneo 5, y Homo caucasi para los cráneos 2 y 3...
Testing the taxonomy of Dmanisi hominin fossils through dental crown area doi.org/10.1371/jour...
Testing the taxonomy of Dmanisi hominin fossils through dental crown area doi.org/10.1371/jour...
December 23, 2025 at 6:45 PM
Las diferencias en dimensiones coronales de los molares de tres cráneos de Dmanisi llevan a Nery et al a sugerir dos taxones: Homo georgicus para el cráneo 5, y Homo caucasi para los cráneos 2 y 3...
Testing the taxonomy of Dmanisi hominin fossils through dental crown area doi.org/10.1371/jour...
Testing the taxonomy of Dmanisi hominin fossils through dental crown area doi.org/10.1371/jour...
Reposted by Caley Orr
Curator of Education job (tenure-track Assistant Professor) at the Museum of Natural History, University of Colorado Boulder! Salary $90-$100K, 9 month full time position. Apply by Jan 21. jobs.colorado.edu/jobs/JobDeta...
Assistant Professor - Curator of Education (Tenure-Track)
jobs.colorado.edu
December 22, 2025 at 5:54 PM
Curator of Education job (tenure-track Assistant Professor) at the Museum of Natural History, University of Colorado Boulder! Salary $90-$100K, 9 month full time position. Apply by Jan 21. jobs.colorado.edu/jobs/JobDeta...
Reposted by Caley Orr
Happy #WinterSolstice ❄️
In Chaco Canyon in the US Southwest, ancient monumental roads align with the winter solstice sunrise over Mount Taylor. Features of both land and sky were (and still are) ritually important to the region's Indigenous people.
🆓 doi.org/10.15184/aqy...
🏺 #Archaeology
In Chaco Canyon in the US Southwest, ancient monumental roads align with the winter solstice sunrise over Mount Taylor. Features of both land and sky were (and still are) ritually important to the region's Indigenous people.
🆓 doi.org/10.15184/aqy...
🏺 #Archaeology
December 21, 2025 at 11:00 AM
Happy #WinterSolstice ❄️
In Chaco Canyon in the US Southwest, ancient monumental roads align with the winter solstice sunrise over Mount Taylor. Features of both land and sky were (and still are) ritually important to the region's Indigenous people.
🆓 doi.org/10.15184/aqy...
🏺 #Archaeology
In Chaco Canyon in the US Southwest, ancient monumental roads align with the winter solstice sunrise over Mount Taylor. Features of both land and sky were (and still are) ritually important to the region's Indigenous people.
🆓 doi.org/10.15184/aqy...
🏺 #Archaeology
Very happy to see our work on the Paranthropus boisei hand highlighted here. It was an incredible fossil to study amidst a great year of Paranthropus discoveries.
My colleague Ryan McRae and I wrote our annual round up of top discoveries in human evolution from this year for the @plos.org Sci Comm blog - enjoy! scicomm.plos.org/2025/12/19/t...
Top Stories in Human Evolution of 2025 - PLOS SciComm
By Ryan McRae and Briana Pobiner 2025 has been quite the wild year! With more exciting stories in human evolution than we…
scicomm.plos.org
December 20, 2025 at 3:41 AM
Very happy to see our work on the Paranthropus boisei hand highlighted here. It was an incredible fossil to study amidst a great year of Paranthropus discoveries.
Reposted by Caley Orr
While stories of singular DNA changes that drove evolution of human brain/behaviour remain seductive, advances across multiple fields of biology cast doubt on such simplistic narratives of our origins. A new paper from my lab shows how biobanks may speak to this fundamental question.🧪
Explainer🧵👇1/n
Explainer🧵👇1/n
Evaluating the effects of archaic protein-altering variants in living human adults
Promise and pitfalls of using large biobanks to study impacts of archaic protein-coding variants in living humans.
www.science.org
December 18, 2025 at 1:51 PM
While stories of singular DNA changes that drove evolution of human brain/behaviour remain seductive, advances across multiple fields of biology cast doubt on such simplistic narratives of our origins. A new paper from my lab shows how biobanks may speak to this fundamental question.🧪
Explainer🧵👇1/n
Explainer🧵👇1/n
Professional anatomist here. I label this diagram "Job Security."
Given all the recent buzz about how great ChatGPT has gotten, including its prowess with images, I figured I'd check in on its anatomical skills. Nope.
December 19, 2025 at 4:08 PM
Professional anatomist here. I label this diagram "Job Security."