Pressures produced when penguins pooh—calculations on avian defaecation

@article{MeyerRochow2003PressuresPW,
  title={Pressures produced when penguins pooh—calculations on avian defaecation},
  author={Victor Benno Meyer-Rochow and József Gál},
  journal={Polar Biology},
  year={2003},
  volume={27},
  pages={56-58}
}
Chinstrap and Adélie penguins generate considerable pressures to propel their faeces away from the edge of the nest. [] Key Result With all of these parameters measured, we calculated that fully grown penguins generate pressures of around 10 kPa (77 mm Hg) to expel watery material and 60 kPa (450 mm Hg) to expel material of higher viscosity similar to that of olive oil. The forces involved, lying well above those known for humans, are high, but do not lead to an energetically wasteful turbulent flow. Whether…
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