Below is a list of the characters by species. They are sorted roughly by largest to smallest size. Animals they only made one of are at the bottom.

Bears (クマ):
Kirsch
Malock
Pomy
Mark
Miomio
Puupuu
Sazan
Mash
Limit
Marshmallow
Minus

Cats (ネコ):
Pauly
Millefeuille
Sheena
Caty
Martha
Miike
Nemy
Nyao
Kerry
Leaf
Robin
Kurin
Poko

Cows (ウシ):
Gyuu
Maa
Molly

Dogs (イヌ):
Map
Flower
Ben
Biggy
Bull
Dog
Galileo
Lily
Marble
Maron
Meeme
Minky
Puppy
Rogue
Bosch
Huey
Tabitha
Carello

Elephants (ゾウ):
Elefan
Pinch
Chalk
Dry
Yankee

Foxes & Ezo Red Foxes (キツネとキタキツネ):
Polish
Irina
Fockle
Folly
Leg
Sharol
Kate
Puffy
Tocchii

Giraffe (キリン):
Tall
Emily

Hippos(カバ):
Hipopo
Boot

Humans (人間):
Tetsuyuki-chan
Katsuaki-chan
Hiroko-chan
Kumiko-chan

Koalas (コアラ):
Pao
Poppy
Alpino
Race

Lions (ライオン):
Leonardo
Cut

Mice (ネズミ):
Jim
Matty
Chem
Chocola
Chucchu
Joey
Judy
Annie
Pip
Purin

Pandas (パンダ):
Bake
Waffle
Poron
Randy
Herb
Kuriru
Paprika

Pigs (ブタ):
Hip
Lemon
Pokey
Puu
April
Kiruto

Rabbits (ウサギ):
Golf
Gray
Letty
Milly
Nelly
Rabbick
Ratton
Jetta
Airi
Carl
Chiiko
Miiko
Lettuce
Moon
Ann
Fumi
Jiggy
Nobunaga
Paruru
Perara
Piyoko
Poppo
Puko
Rabbi
Samantha

Sheep (ヒツジ):
Daiya
Meria
Suzy
Wooly
Whip
Pure

Squirrels (リス):
Nutty
Pop
Puchitto
Purple
Rippy
Gucchi
Betty
Pinin

Tanukis (タヌキ):
Pokkoro
Raccoon
Ponty

Single (ひとり):
Monta (Gorilla ゴリラ)
Rose (Mole モグラ)
Wei (Tiger トラ)
Kemi (Aye-Aye アイアイ)
Archimedes (Deer シカ)
Pepe (Beaver ビーバー)
Merle (Fennick フェネック)
Speed (Donkey ロバ)
Foggy (Alligator ワニ)
Lesser ( Lesser Panda レッサーパンダ)