Assertion: cassowary's casque | /r/HasProperty | protective device
Facets:
value: by a dense bone layer
type: OTHER
Source sentences:
text: They do go crashing through the rainforest which is why the theory about the casque being a protective device developed.
text: While the casque is dark-colored on the outside and protected by a dense bone layer resembling a horse hoof or tortoise shell, the inside is made up of fragile, spongy honeycomb tissue with more air spaces toward the rear of the structure.
text: They do go crashing through the rainforest which is why the theory about the casque being a protective device developed.