Form and Function in the Sloth

  title={Form and Function in the Sloth},
  author={S. W. Britton},
  journal={The Quarterly Review of Biology},
  pages={13 - 34}
  • S. W. Britton
  • Published 1 March 1941
  • Biology
  • The Quarterly Review of Biology
INTRODUCTION S PEED, speed and still more speed" began a newspaper editorial recently, considering the impulses of civilized man. Regarding simple rate of physical movement, however, the distance-in-time curve for man and most of his interests has now become rather flattened at the higher levels. It may be interesting to observe in contrast a lowlier form, but one still in our own mammalian class, the proverbially tardy sloth. Its curve of activity, after many aeons of concentrated… 

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