Translation

The Japanese word for "Porcupine" is yama-arashi ヤマアラシ.

Romaji ya ma a ra shi
Hiraganaやまあらし
Katakanaヤマアラシ
Kanji 山 荒
Meaning Mountain Storm
School Level 小1 中

Further Reading

Wikipedia: Porcupine (ヤマアラシ)