|Period||late Miocene - Pliocene|
|Living Period||11 Million - 2 Million years ago|
|Size||50cm long including his head|
|First Appearance||Chapter 1|
Shirou's History Fact
The world's biggest rodent. It's about the size of a present-day hippopotamus. It's said that Eumegamys may have lived in the water, or spent part of its life in the water. However further details are unknown.
Wonderful World arc
While Akira Sengoku was looking for his classmates after the crash he stumbled on an Eumegamys. He thought it was a beaver and followed it as he believed it would take him to water as beevers generally build dams. The Eumegamys had successfully lead him to a pond of water and is later seen drinking out of it.