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Many of these fir trees have been permanently bent by the high winds that often prevail from the west. In addition to fir trees , these " mountaintop island " biomes are a valuable and threatened habitat for many other flora and fauna suited to survival at higher elevation .
 flora, fauna
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 flora, fauna