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Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
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The adult human body usually has 206 bones, and except for the hyoid bone in the neck, each bone is connected to at least one other bone. Joints are the location where bones come together. Many joints allow for movement between the bones. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. However, the bones of other joints may be joined by connective tissue or cartilage. These joints are designed for stability and provide little or no...
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Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
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Variability and the form-function framework in evolutionary biomechanics and human locomotion.

Alison A Murray1

  • 1Department of Anthropology, University of Victoria, Cornett Building Room B228, 3800 Finnerty Road, Victoria, BC, Canada V8P 5C2.

Evolutionary Human Sciences
|August 17, 2023
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Summary

The form-function framework is vital for studying species locomotion. New research explores how variations in this relationship, influenced by factors like soft tissues, challenge traditional biomechanical models for fossil interpretation.

Keywords:
Biomechanicsbipedalismfunctional morphologyhuman evolutionkinematics

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Area of Science:

  • Evolutionary biomechanics
  • Biological anthropology
  • Paleontology

Background:

  • The form-function framework links trait structure to function, crucial for understanding species morphology and locomotion.
  • In biological anthropology, this framework has guided research on morphology, kinematics, energetics, and performance.
  • Fossil hominin, ape, and human morphologies exhibit locomotor diversity due to soft tissue, environmental, and cultural factors.

Purpose of the Study:

  • To address challenges posed by variation in the form-function relationship within evolutionary biomechanics.
  • To better characterize the complex link between biological structure and function.
  • To develop tools for incorporating complexity into functional interpretations of past behaviors.

Main Methods:

  • Analysis of morphological variation in extant and fossil species.
  • Application of biomechanical and mathematical modeling.
  • Integration of data considering soft tissue plasticity, environmental, and cultural factors.

Main Results:

  • Traditional models struggle to account for locomotor diversity and flexibility in fossil species.
  • The relationship between bone structure and behavior in the past is limited by current modeling approaches.
  • Variation in form-function relationships presents significant challenges in evolutionary biomechanics.

Conclusions:

  • Recognizing and quantifying variation in the form-function relationship is essential for accurate interpretations.
  • Incorporating factors beyond skeletal morphology, such as soft tissues and environment, is necessary.
  • This collection provides insights and tools to advance functional interpretations in evolutionary studies.