The energetic costs of load-carrying and the evolution of bipedalism.

@article{Watson2008TheEC,
  title={The energetic costs of load-carrying and the evolution of bipedalism.},
  author={Johanna C. Watson and Rachel C Payne and Andrew T. Chamberlain and Richard K. Jones and William Irvin Sellers},
  journal={Journal of human evolution},
  year={2008},
  volume={54 5},
  pages={675-83}
}
The evolution of habitual bipedalism is still a fundamental yet unsolved question for paleoanthropologists, and carrying is popular as an explanation for both the early adoption of upright walking and as a positive selection pressure once a terrestrial lifestyle had been adopted. However, to support or reject any hypothesis that suggests carrying efficiency was an important selective pressure, we need quantitative data on the costs of different forms of carrying behavior, especially infant… CONTINUE READING

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