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Small mammal species that inhabit along the trails are beaver , squirrel , river otter , chipmunk , porcupine , bobcat , two species of fox , boar , woodchuck , raccoon , and coyote .
 beaver, squirrel, river otter, chipmunk, porcupine, bobcat, fox, boar, woodchuck, raccoon
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:
 beaver, squirrel, river otter, chipmunk, porcupine, bobcat, fox, boar, woodchuck, raccoon