| 31. | Orangutans are among the most intelligent primates; they pet trade.
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| 32. | Considered generalist mammals, primates exhibit a wide range of characteristics.
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| 33. | This species is among the most social of the nocturnal primates.
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| 34. | Primates and horses have armpits that sweat like those of humans.
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| 35. | Instances in which nonhuman primates have expressed joy have been reported.
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| 36. | Ancestral primates had brown eyes, as most primates do today.
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| 37. | Ancestral primates had brown eyes, as most primates do today.
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| 38. | Modern molecular biology reinforced humanity s place within the Primate order.
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| 39. | Unlike most primates, human males do not have penile bones.
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| 40. | Concerns have been raised over the mistreatment of primates undergoing testing.
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