67680
One group of capuchin monkeys was observed appearing to care for a marmoset , a fellow New World monkey species , however observations of chimpanzees apparently " playing " with small animals like hyraxes have ended with the chimpanzees killing the animals and tossing the corpses around .
 marmoset, New World monkey
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:
 marmoset, New World monkey