Translation

kangarū means "Kangaroo" in English.
It's a katakanization, a loan-word.

kangarū is normally written with katakana, as カンガルー.
kangarū written with hiragana is かんがるー.
kangarū does not have kanji.
Romaji ka n ga ruu
Katakana
Hiragana

Orthography Notes

Further Reading

Wikipedia: カンガルー (Kangaroo)