Assertion: desert tortoise's shell | /r/HasProperty | hard
Facets:
value: generally
type: DEGREE
Source sentences:
text: Their hard shells are high-domed compared to other tortoise species and range from olive green to dark brown in color.
text: Anatomy: The desert tortoise has a hard upper shell (the carapace) which is about 9 to 15 inches (23-38 cm) long.
text: AND THE SHELL IS HARD.
text: The shell in tortoises is generally hard, and like other members of the suborder Cryptodira, they retract their necks and heads directly backwards into the shell to protect them.