Little is known regarding the natural lifespan of prototherians; however, they can live several decades in captivity. In at least one case, a short-nosed echidna lived 50 years.
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Appears under "Life Expectancy"
©1995-2012, The Regents of the University of Michigan and its licensors
© The Regents of the University of Michigan and its licensors
Animal Diversity Web
Phil Myers, Museum of Zoology, University of Michigan
Tanya Dewey, Animal Diversity Web, University of Michigan Museum of Zoology
Matthew Wund, University of Michigan
Anna Bess Sorin, University of Michigan, , 233 Life Sciences Bldg, Biology Dept., University of Memphis, Memphis, TN 38152
Wund, M.; A. Sorin and P. Myers . "Prototheria" (On-line), Animal Diversity Web. Accessed April 04, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Prototheria.html
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