Assertion: box turtle | /r/HasProperty | called
Facets:
Source sentences:
text: Since they are ectotherms (what used to be called "cold-blooded"), they can’t produce their own internal heat.
text: Box turtles are called so because of the hinge on the bottom of their shell, which allows the turtle to hide its head and legs entirely inside the shell and then close into a tightly-sealed "box," protecting itself from predators.