Assertion: woodpecker's habit | /r/CapableOf | involve strenuous clinging
Facets:
Source sentences:
text: The woodpecker is a marvel of evolution, having adapted itself to feeding habits that involve strenuous clinging, climbing and hammering.
text: In fact, its body is truly a marvel of avian evolution, having adapted itself to feeding habits that involve strenuous clinging, climbing and hammering.