18 books
Hyla Eco Tours: Snow Adventure Tour
Jump!
Salamander and Gecko
When I Was a Dinosaur
Amagaeru Sensei, Mayonaka No Bikkuri Konsato
Korya Taihen Amagaeru Sensei Midoriike Kyushutsu Daisakusen
Amagaeru Sensei Mitsukete Tabeyou! Noichigo Kyoushitu
Day and Night in Nature
Chikyu Ga Unchidarake Ni Naranai Wake
Yu Wa Zi Ran Guan Cha Tuan
Boku Ga Kyoryu Datta Toki
Amagaeru Tosan to Iku Hajimete No Konchu Saishu
Uwa!
Itaiyo Itaiyo "It Hurts! It Hurts!"
Dinosaur Kingdom
Teacher Tree Frog's Nature Classroom
Goron Goron
Madakana