noun
box turtle
Refers to turtles of the genus Terrapene, known for their hinged plastron that allows them to close their shell tightly.
ハコガメは危険を感じると甲羅を閉じる。
Box turtles close their shells when they sense danger.
Compound of 箱 (hako, 'box') and 亀 (kame, 'turtle'), referring to the turtle's ability to enclose itself like a box.