61365
Although populations of the mouse may be in general decline , the International Union for Conservation of Nature has assessed its conservation status as being of least concern because it believes the rate of population decline is not fast enough to justify placing it in a more threatened category .
 International Union for Conservation of Nature
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 International Union for Conservation of Nature