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
Latest paper: Boxgrove is a key European site dating to 480,000 years ago. At GTP17, hominins knapped handaxes and then butchered an adult female horse. A fragment of the horse's scapula appeared to have evidence of impact from a wooden spear.....
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
November 8, 2025 at 9:05 AM
Latest paper: Boxgrove is a key European site dating to 480,000 years ago. At GTP17, hominins knapped handaxes and then butchered an adult female horse. A fragment of the horse's scapula appeared to have evidence of impact from a wooden spear.....
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Caley Orr
✨NEW INTERVIEW!✨
RETURN OF THE TOOLMAKER - Hands of Paranthropus ~ with DR CARRIE MONGLE
@carriemongle.bsky.social
@trentonholliday.bsky.social
#evolutionsoup #evolution #paleoanthropology #science #fossils
👇🏿👇🏽
youtu.be/kcGgfUbbkwE
RETURN OF THE TOOLMAKER - Hands of Paranthropus ~ with DR CARRIE MONGLE
@carriemongle.bsky.social
@trentonholliday.bsky.social
#evolutionsoup #evolution #paleoanthropology #science #fossils
👇🏿👇🏽
youtu.be/kcGgfUbbkwE
November 5, 2025 at 11:03 PM
✨NEW INTERVIEW!✨
RETURN OF THE TOOLMAKER - Hands of Paranthropus ~ with DR CARRIE MONGLE
@carriemongle.bsky.social
@trentonholliday.bsky.social
#evolutionsoup #evolution #paleoanthropology #science #fossils
👇🏿👇🏽
youtu.be/kcGgfUbbkwE
RETURN OF THE TOOLMAKER - Hands of Paranthropus ~ with DR CARRIE MONGLE
@carriemongle.bsky.social
@trentonholliday.bsky.social
#evolutionsoup #evolution #paleoanthropology #science #fossils
👇🏿👇🏽
youtu.be/kcGgfUbbkwE
Reposted by Caley Orr
Evolutionary psychologists have long believed that men prefer physical traits in women which are cues to high potential fertility. A new review concludes: “current evidence base is too weak to support the claim that women’s feminine morphological traits are associated with reproductive potential”
A systematic review of the association between women’s morphological traits and fertility | Evolutionary Human Sciences | Cambridge Core
A systematic review of the association between women’s morphological traits and fertility
www.cambridge.org
November 5, 2025 at 9:02 AM
Evolutionary psychologists have long believed that men prefer physical traits in women which are cues to high potential fertility. A new review concludes: “current evidence base is too weak to support the claim that women’s feminine morphological traits are associated with reproductive potential”
Reposted by Caley Orr
"“Normal” testosterone levels are largely based on studies from high-income populations that do not account for diverse ecological conditions known to influence physiology. This study highlights complex relationships that exist among age, adiposity & testosterone patterns in subsistence populations"
Salivary Testosterone, Age, and Adiposity Associations Among Shuar Males in Amazonian Ecuador Challenge Assumptions of “Normal” Testosterone Patterns
Objectives
Adult male testosterone concentrations in high income countries often decrease with age and adiposity, a pattern typically viewed as “normal.” However, testosterone is expected to be adap.....
onlinelibrary.wiley.com
November 4, 2025 at 7:16 AM
"“Normal” testosterone levels are largely based on studies from high-income populations that do not account for diverse ecological conditions known to influence physiology. This study highlights complex relationships that exist among age, adiposity & testosterone patterns in subsistence populations"
Reposted by Caley Orr
Did lead exposure influence human evolution? We explore the idea w/ Alysson Muotri on the @science.org podcast.
www.science.org/content/podc...
www.science.org/content/podc...
November 3, 2025 at 4:40 PM
Did lead exposure influence human evolution? We explore the idea w/ Alysson Muotri on the @science.org podcast.
www.science.org/content/podc...
www.science.org/content/podc...
Reposted by Caley Orr
Sometimes you have to go back to basics #MemeMonday
November 3, 2025 at 1:02 PM
Sometimes you have to go back to basics #MemeMonday
I appreciate the coverage of our work on Ardipithecus ramidus ankle morphology, but that's a photo of the 1.9 million year old MH2 Australopithecus sediba cranium, not 4.4 million year old Ardi. 🏺🧪 #paleoanthroplogy
She Was Half Ape, Half Human—and She May Hold the Secret to What Makes Us Who We Are
In this 4.4-million-year-old skeleton, scientists may have found the missing step between climbing and walking.
www.popularmechanics.com
October 29, 2025 at 6:07 PM
I appreciate the coverage of our work on Ardipithecus ramidus ankle morphology, but that's a photo of the 1.9 million year old MH2 Australopithecus sediba cranium, not 4.4 million year old Ardi. 🏺🧪 #paleoanthroplogy
"We found no evidence of migratory behavior in species that exhibit this behavior today. Ancient foragers likely hunted prey that were available year-round, consistent with zooarchaeological and genetic evidence for reduced mobility at the end of the Pleistocene." 🏺🧪🦣
Biogeochemical evidence for targeted landscape use in ancient foragers of Malawi - Communications Earth & Environment
Foragers hunted small game locally and procured most large prey in riparian habitats and Afromontane grasslands to the southeast of the Kasitu Valley of northern Malawi, suggesting that migratory beha...
www.nature.com
October 29, 2025 at 2:36 AM
"We found no evidence of migratory behavior in species that exhibit this behavior today. Ancient foragers likely hunted prey that were available year-round, consistent with zooarchaeological and genetic evidence for reduced mobility at the end of the Pleistocene." 🏺🧪🦣
Reposted by Caley Orr
When people learn with ChatGPT instead of following their own searches, they end up knowing less, caring less, and producing worse advice, even when the facts are the same.
Friction is an essential ingredient for learning! Convenience makes us shallow.
academic.oup.com/pnasnexus/ar...
Friction is an essential ingredient for learning! Convenience makes us shallow.
academic.oup.com/pnasnexus/ar...
Experimental evidence of the effects of large language models versus web search on depth of learning
Abstract. The effects of using large language models (LLMs) versus traditional web search on depth of learning are explored. A theory is proposed that when
academic.oup.com
October 28, 2025 at 3:14 PM
When people learn with ChatGPT instead of following their own searches, they end up knowing less, caring less, and producing worse advice, even when the facts are the same.
Friction is an essential ingredient for learning! Convenience makes us shallow.
academic.oup.com/pnasnexus/ar...
Friction is an essential ingredient for learning! Convenience makes us shallow.
academic.oup.com/pnasnexus/ar...
Reposted by Caley Orr
#OnThisDay in 2004, we were introduced to "a stranger from Flores," a new species of human called Homo floresiensis. @chrisbstringer.bsky.social's thoughts at the time on the big (or small) surprise: go.nature.com/34s9xbM 🏺🧪
October 28, 2025 at 11:12 AM
#OnThisDay in 2004, we were introduced to "a stranger from Flores," a new species of human called Homo floresiensis. @chrisbstringer.bsky.social's thoughts at the time on the big (or small) surprise: go.nature.com/34s9xbM 🏺🧪
Our field team's new summary article on work in the Paleolithic & Mesolithic of Liguria (northwestern Italy) at the sites of Riparo Bombrini & Arma Veirana. Sadly, our excavations at Arma Veirana have been stalled indefinitely by administrative challenges beyond our control. 🏺 #paleoanthropology
Nouvelles recherches et données sur les sites liguriens du Riparo Bombrini (Balzi Rossi, Imperia) et de l’Arma Veirana (Erli, Savona)
Le présent article est une synthèse de quelques-unes des nouvelles découvertes les plus récentes concernant le Paléolithique et le Mésolithique de la …
www.sciencedirect.com
October 27, 2025 at 2:34 PM
Our field team's new summary article on work in the Paleolithic & Mesolithic of Liguria (northwestern Italy) at the sites of Riparo Bombrini & Arma Veirana. Sadly, our excavations at Arma Veirana have been stalled indefinitely by administrative challenges beyond our control. 🏺 #paleoanthropology
Reposted by Caley Orr
Characterizing the American Upper Paleolithic
Characterizing the American Upper Paleolithic
Tool similarities link Late Pleistocene American and Northeast Asian lithic traditions.
www.science.org
October 26, 2025 at 12:56 AM
Characterizing the American Upper Paleolithic
Reposted by Caley Orr
Super proud of my #phd candidate Georgina Luti’s 1st 1st author paper 📝
Biggest ever investigation of speleothem textures & sedimentary relationships in the Cradle of Humankind 💪🏽
No evidence of ‘intrusive’ flowstones 😳
@heriuct.bsky.social
Biggest ever investigation of speleothem textures & sedimentary relationships in the Cradle of Humankind 💪🏽
No evidence of ‘intrusive’ flowstones 😳
@heriuct.bsky.social
Africa’s caves are timekeepers of climate and life. 🌍
An all-women research team, led by HERI’s Georgina Luti, has revealed how rock layers called speleothems record shifts in Africa’s past and help us date fossils more reliably.
#WomenInScience & rooted in Africa.
An all-women research team, led by HERI’s Georgina Luti, has revealed how rock layers called speleothems record shifts in Africa’s past and help us date fossils more reliably.
#WomenInScience & rooted in Africa.
October 22, 2025 at 9:33 AM
Super proud of my #phd candidate Georgina Luti’s 1st 1st author paper 📝
Biggest ever investigation of speleothem textures & sedimentary relationships in the Cradle of Humankind 💪🏽
No evidence of ‘intrusive’ flowstones 😳
@heriuct.bsky.social
Biggest ever investigation of speleothem textures & sedimentary relationships in the Cradle of Humankind 💪🏽
No evidence of ‘intrusive’ flowstones 😳
@heriuct.bsky.social
Reposted by Caley Orr
🏺🧪
Early European evidence of artificial cranial modification from the Italian Late Upper Palaeolithic Arene Candide Cave - Scientific Reports
Scientific Reports - Early European evidence of artificial cranial modification from the Italian Late Upper Palaeolithic Arene Candide Cave
www.nature.com
October 20, 2025 at 2:23 PM
🏺🧪
Reposted by Caley Orr
"What NPS anthropologists provide...is the ability to recognize the crossroads and overlaps between what the Park Service hopes to accomplish and the traditions and lifeways of communities who will be affected by their actions." Good piece @sapiens.org by Ellyn Demuynck #anthropology #nationalpark
The Cost of Cutting Anthropology Out of U.S. National Parks
A former National Park Service anthropologist reflects on the vital role of cultural anthropology to the agency’s mission.
www.sapiens.org
October 17, 2025 at 1:44 PM
"What NPS anthropologists provide...is the ability to recognize the crossroads and overlaps between what the Park Service hopes to accomplish and the traditions and lifeways of communities who will be affected by their actions." Good piece @sapiens.org by Ellyn Demuynck #anthropology #nationalpark
Reposted by Caley Orr
Ardipithecus ramidus ankle provides evidence for African ape-like vertical climbing in the earliest hominins 🏺🧪
www.nature.com/articles/s42...
Examines the evolutionary context of human bipedalism by analyzing the morphology of 4.4 million-year-old hominin talus attributed to ARA-VP-6/500-023.
www.nature.com/articles/s42...
Examines the evolutionary context of human bipedalism by analyzing the morphology of 4.4 million-year-old hominin talus attributed to ARA-VP-6/500-023.
October 17, 2025 at 3:00 PM
Ardipithecus ramidus ankle provides evidence for African ape-like vertical climbing in the earliest hominins 🏺🧪
www.nature.com/articles/s42...
Examines the evolutionary context of human bipedalism by analyzing the morphology of 4.4 million-year-old hominin talus attributed to ARA-VP-6/500-023.
www.nature.com/articles/s42...
Examines the evolutionary context of human bipedalism by analyzing the morphology of 4.4 million-year-old hominin talus attributed to ARA-VP-6/500-023.
Reposted by Caley Orr
I've been saying for a couple years now that the AI-will-fundamentally-reshape-the-academy craze has all the elements of the mid-2010s MOOCs-will-fundamentally-reshape-the-academy craze.
In about three years the entire university pivot to AI curricula and schools and programs is going to be so deeply embarrassing. We will all pretend it never happened and I will be standing there, looking at people with a mirror in my eyes. This is all so embarrassing.
October 17, 2025 at 12:25 PM
I've been saying for a couple years now that the AI-will-fundamentally-reshape-the-academy craze has all the elements of the mid-2010s MOOCs-will-fundamentally-reshape-the-academy craze.
The diverse treatment of human remains across cultures and throughout our long history as a species is fascinating.
Archaeologists discovered a bunch of Neolithic period worked human bones in canals and moats in southern China. 🏺🧪
5,000 years ago, Stone Age people in China crafted their ancestors' bones into cups and masks
Archaeologists in China found a collection of human bones that showed signs of being "worked" like any other natural material.
www.livescience.com
October 16, 2025 at 3:17 PM
The diverse treatment of human remains across cultures and throughout our long history as a species is fascinating.