Translation

tsuchi-buta means "Aardvark" in English.

tsuchi-buta is normally written with katakana, as ツチブタ.
tsuchi-buta written with hiragana is つちぶた.
tsuchi-buta written with kanji is 土豚.
These are jouyou kanji 常用漢字, taught in junior high, chuugakkou 中学校.
Romaji tsu chi bu ta
Hiragana
Katakana
Kanji
Meaning Soil Pig
School Level 小1

Further Reading

Wikipedia: ツチブタ
iruka 海豚, mogura 土竜.