Assertion: dinosaur's feather | /r/HasProperty | ancestral dinosaurian trait
Facets:
Source sentences:
text: Based on the current distribution of fossil evidence, it appears that feathers were an ancestral dinosaurian trait, though one that may have been selectively lost in some species.
text: Based on the current distribution of fossil evidence, it appears that feathers were an ancestral dinosaurian trait, though one that may have been selectively lost in some species.