Is Platy really a Platypus? In Sabagebu! episode 4, Mokarin tries to find out where Platy comes from. Everyone thinks that Platy is a platypus but they aren't able to confirm it since it doesn't do anything a platypus does.



So my question, is it actually a Platypus?
I think so, although it's never revealed - the name Platty (and in Japanese Kamo - short for Kamonohashi [platypus] ) and his appearance is pretty indicative of it.

If we use the Duck Test:


  if it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.


Platty:


Looks like a platypus
We don't really get to see Platty swim, but he does enjoy a hotspring - where platypuses can reside. article about an investigation of Platypuses in Lake Kinrin hotspring water





He sorta sounds like a platypus https://www.youtube.com/watch?v=dsd7ZfdZcNU , but it's more of a quack noise.


Conclusion: Maybe? (I don't think we're supposed to know)