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University of Northern Colorado

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Full-Text Articles in Biological and Physical Anthropology

Bipedalism Is A Balancing Act: Talus Landmarking In Facultative Bipedal Primates, Anita Patane May 2024

Bipedalism Is A Balancing Act: Talus Landmarking In Facultative Bipedal Primates, Anita Patane

Undergraduate Honors Theses

Obligate bipedal locomotion, mandatorily walking on two legs, is vastly important as it is the fundamental precursor to the human lineage; it precedes tool usage and language. Chimpanzees, our closest living ancestors for the human ancestral condition, are often the proxy and are the dominant subject of human bipedalism studies. There are additional species, such as arboreal Black Spider Monkeys (Ateles paniscus) who habitually travel through the trees bipedally. These facultative bipedal primates (FBP) introduce a new lens to how modern human talus and calcaneus’ mobility has adapted to environmental shifts such as the transition from arboreal to …

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The Cognitive Evolution Of Homo Erectus, Emily Dzhinenko Jul 2022

The Cognitive Evolution Of Homo Erectus, Emily Dzhinenko

Ursidae: The Undergraduate Research Journal at the University of Northern Colorado

Evolutionary cognitive archaeology evaluates the evolution of cognitive advancements through past hominins and artefacts to understand their intellectual capabilities of planning, reasoning, memory, and problem-solving skills up until present day. I will explore cognitive evolution through a literature review of the effects on Homo erectus from their controlled exploitation of fire. Utilization of fire by H. erectus directly impacted their nutritional intake resulting in physiological changes which included increased brain sizes. Larger brains created room for expansion of the dopaminergic system allowing new cognitive abilities to adapt. Results from these adaptations included a more efficient thermoregulatory system and extraversive behaviours …

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Determining Dietary Niche In Primates Using Portable X-Ray Fluorescence, Theresa C. Schwartz Jul 2021

Determining Dietary Niche In Primates Using Portable X-Ray Fluorescence, Theresa C. Schwartz

Ursidae: The Undergraduate Research Journal at the University of Northern Colorado

Diet is a critical component of the ecology of an animal. Many dietary reconstructions involve destruction of the sample. Portable X-Ray fluorescence (pXRF), however, is a non-destructive method of gathering elemental data. This is important for research in biological anthropology and diet reconstructions because it leaves a sample intact of which there might only be few specimens. There has been a gap in dietary reconstructions using non-destructive methods like pXRF which is portable, cheaper, and as accurate as destructive methods and should therefore be implemented into research of this nature. This research attempts to validate this method by determining dietary …

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Testing The Iron Deficiency Anemia Hypothesis Using P-Xrf, Eduardo Maya Jan 2020

Testing The Iron Deficiency Anemia Hypothesis Using P-Xrf, Eduardo Maya

McNair Scholars

One controversy within the field of bioarchaeology revolves around theories that describe what environmental factors and illnesses could be causing cribra orbitalia (CO) and porotic hyperostosis (PH). These two pathological conditions, which are identified by porosities on the human cranium, are used by bioarchaeologists to estimate the health of archaeological remains. In the past, iron deficiency anemia (IDA) was widely believed to be causing these conditions. A range of factors, such as parasitic infections and lack of iron through dietary consumption, cause IDA. Because of the hypothesis connecting CO and PH to IDA, archaeological remains with visible porosities have had …

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