Stereotypical resting behavior of the sperm whale

@article{Miller2008StereotypicalRB,
  title={Stereotypical resting behavior of the sperm whale},
  author={Patrick J. O. Miller and Kagari Aoki and Luke Rendell and Masao Amano},
  journal={Current Biology},
  year={2008},
  volume={18},
  pages={R21-R23}
}
Summary Though very little is known about sleep in wild cetaceans, toothed cetaceans in captivity sleep with one side of their brain at a time [1]. Such uni-hemispheric sleep is thought to enable swimming, voluntary breathing, predator avoidance and/or social contact during sleep at sea [2,3]. Using suction cup tags, we discovered that sperm whales ( Physeter macrocephalus ) worldwide conduct passive shallow ‘drift-dives' in stereotypical vertical postures just below the sea surface. Bouts of… Expand
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