Document Detail

Evolution of developmental rate in mammals.
MedLine Citation:
PMID:  7106209     Owner:  NLM     Status:  MEDLINE    
The allometric relationship between gestation period and body mass in terrestrial placental mammals was analyzed using data from 147 species. Important differences were found among the various orders. These differences can be explained if it were assumed that the order-specific lifestyle and environment in which the young are born has caused different selection pressures on the newborn young in the various orders and thus influenced the number of young per litter and duration of gestation. As proposed elsewhere, such evolutionary effects on embryonic development may have indirectly influenced the evolution of mammalian life span.
A C Economos
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Experimental gerontology     Volume:  17     ISSN:  0531-5565     ISO Abbreviation:  Exp. Gerontol.     Publication Date:  1982  
Date Detail:
Created Date:  1982-10-29     Completed Date:  1982-10-29     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0047061     Medline TA:  Exp Gerontol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  153-8     Citation Subset:  IM    
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MeSH Terms
Adaptation, Physiological*
Body Height
Life Style
Mammals / physiology*
Pregnancy, Animal

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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