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Russell Mittermeier , one of the contemporary authorities on lemurs , describes the diademed sifaka as " one of the most colorful and attractive of all the lemurs " , having a long and silky coat .
 Russell Mittermeier
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:
 Russell Mittermeier