Assertion: hoatzin's crop | /r/CapableOf | function as rumen
Facets:
Source sentences:
text: Hoatzin is herbivorous, it eats leaves and fruit, and has an unusual digestive system with an enlarged crop which functions as a rumen.
text: Consume a wide variety of plant material, including leaves and fruit, and has an unusual digestive system with an enlarged crop which functions as a rumen.