128 books • 45 series
Book #1: Bats
Book #2: Bees
Book #3: Birds
Book #4: Dolphins
Book #5: Horses
Book #1: Bats / Les chauves-souris
Book #2: Bees / Les abeilles
Book #3: Birds / Les oiseaux
Book #4: Dolphins / Les dauphins
Book #5: Horses / Les chevaux
Book #1: Bats / 박쥐
Book #2: Bees / 벌
Book #3: Birds / 새
Book #4: Dolphins / 돌고래
Book #5: Horses / 말
Book #1: Bats / Murciélagos
Book #2: Bees / Abejas
Book #3: Birds / Aves
Book #4: Dolphins / Delfines
Book #5: Horses / Caballos