Assertion: mountain gorilla's fur | /r/AtLocation | their back
Facets:
Source sentences:
text: The group is led by a single male, called silverbacks because of the distinctive silvery fur growing on their back and hips when they mature at least 12 years olds , these silverback scares away other animals by standing on their back legs they decide all activities within their troop.
text: An adult male gorilla is called a silverback because of the distinctive silvery fur growing on their back and hips.
text: An adult male gorilla is called a silverback because of the distinctive silvery fur growing on their back and hips.