Batches and Real Knowledge

Can the shorthand for what a batch includes rely upon real world knowledge? For instance if you had decided to batch “animals”. I feel like most people would be able to identify whether a particular creature type refers to an animal, with maybe a couple debatable ones that might need information not on the card. (eg Whether a Hippogriff is an animal.)

---

Batches are chosen because the items feel connected. This helps players remember them.