Amanojaku to Hesomagari explains that:
Before becoming an artist, I studied cognitive neuropsychology at graduate school . . . There are so many unknown animals in the world. And there are many animals that are hated unfairly, too. Through my work, I am trying to show people how charming they are.
He's definitely accomplishing that! And his bags certainly attention grabbing. You can see 33 other animal bags at Bored Panda, including a coelacanth, a flea, and a flying squirrel.
-via Design You Trust