Assertion: owl's ear tuft | /r/CapableOf | serve as camouflage
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Source sentences:
text: Scientists disagree as to the function of these ear tufts: Some suggest that the ear tufts serve as camouflage by breaking the contour of the owl's head, while others suggest that the tufts serve some role in communication or recognition, enabling the owls to convey some kind of signals to one another.