porcupine|porcupines

我们在森林里看到一只豪猪正在爬树。

We spotted a ___porcupine climbing a tree in the forest.

豪猪用身上的尖刺来保护自己免受捕食者的攻击。

___Porcupines use their sharp quills to defend themselves from predators.

小心那只豪猪，它竖起尖刺保护自己。

Be careful with that ___porcupine, it's raising its quills to protect itself.