Animal’s Navel

  • Mohamed Fahmy


Most mammals had an umbilical cord and eventually umbilicus, but sea shellfish, the whole animal, looks like an umbilicus.


  1. 1.
    Reeves TB. A double umbilicus. Anat Rec 10:15–18 Jane Goodall: in the shadow of man, textbook published April 21st 2000 by Mariner Books (first published January 1st 1971); 1916.CrossRefGoogle Scholar
  2. 2.
    Oldest live-birth fossil found; fish had umbilical cord. National Geographic News. 28 May 2008.Google Scholar
  3. 3.
    Flannery TF. Kangaroos: 15 million years of Australian bounders. In: Archer M, Clayton G, editors. Vertebrate zoogeography and evolution in Australasia. Carlisle: Hesperian Press; 1984. p. 817–35.Google Scholar
  4. 4.
    Frith HJ, Coleby JH. Kangaroos. Melbourne: F.W. Cheshire Publishing Pty Ltd; 1969. p. 110–9.Google Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Mohamed Fahmy
    • 1
  1. 1.Pediatric SurgeryAl Azher University Pediatric SurgeryCairoEgypt

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