File:PSM V04 D547 Evolutionary adaptions of feet.jpg

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Evolutionary adaptions of feet

  • A—Extreme form of compressed foot, as seen in the deer, ox, etc., adapted specially for land transit.
  • B—Extreme form of expanded foot, as seen in the ornithorhynchus, etc., adapted more particularly for swimming.
  • C—Intermediate form of foot, as seen in the otter.
  • D—Foot of frog. Here the foot is equally serviceable in and out of the water.
  • E—Foot of the seal, which opens and closes in the act of natation.
Date between 1873 and 1874
date QS:P,+1873-00-00T00:00:00Z/8,P1319,+1873-00-00T00:00:00Z/9,P1326,+1874-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 4
Author Unknown authorUnknown author
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