The echidna manifests typical characteristics of rapid eye movement sleep

@article{Nicol2000TheEM,
  title={The echidna manifests typical characteristics of rapid eye movement sleep},
  author={Stewart C. Nicol and Niels {\AA}kerstr{\o}m Andersen and NATHAN H. Phillips and Ralph J. Berger},
  journal={Neuroscience Letters},
  year={2000},
  volume={283},
  pages={49-52}
}

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The guiding principle in collecting morbidity records must not be whether it would be interesting to have them but whether they can confidently be expected to furnish knowledge which will repay the labour of their collection.

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