Assertion: squirrel monkey's group | /r/MadeOf | less than 15 members
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Source sentences:
text: Animal Info.org presented a harsh but necessary statistic that said, ÒLong-term monitoring of isolated population of Central American squirrel monkeys indicated that local extinction was almost certain when a group contained less than 15 members and had less than about 30 hectares (75 acres) of available habitatÓ.