Assertion: tawny eagle | /r/HasProperty | classed as its own species
Facets:
value: due to differences in anatomy
type: CAUSE
Source sentences:
text: The Tawny Eagle was once considered a relative of the Steppe Eagle (Aquila nipalensis), however, it is now classed as its own species due to differences in anatomy particularly the length of the gape flange which never extends beyond the middle of the eye in the Tawny Eagle.