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A eurytherm is an organism, often specifically an ectotherm, that can function at a wide range of different body temperatures.

For example, desert pupfish can function in waters from 4º to 45ºC.[1]

Eurytherms are contrasted to stenothermic organisms.[2]


  1. ^ Lowe, Charles H.; Wallace G. Heath (January 1969). "Behavioral and Physiological Responses to Temperature in the Desert Pupfish Cyprinodon macularius". Physiological Zoology. 42 (1): 53–59. 
  2. ^ Hill R, Wyse G, Anderson A. Animal Physiology. 2004. Sinaur Associates, Inc.

External links[edit]

  • The dictionary definition of eurytherm at Wiktionary