32698
These groups were hunter-gatherers who hunted a wide range of animals , including a variety of megafauna , which became extinct following the end of the Pleistocene age .
 Pleistocene age
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pleistocene age