Question

name says it all

Answer 1

What I think could be the reason is that every pokemon could have some kind of venom that could go through claw and teeth and such.
Other than that i cant come up with any logical explenation

paddor ;)

Comments

It's a video game, it's not going to be completely logical. How much logic is there in a game about kids owning and fighting with super powered animals?

---

I know that, but that's the only reason I think could be possible
But your completely right.