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Table of Contents
Sehto's fauna in brief consists of the following creatures:
- non-vertebrate animals
- pokémon
There are some exceptions, but that's the rule of thumb.
The set-up is largely owed to Sehto being in the pokéverse, meaning most macroscopic life is made up of pokémon. As such, there are notably no (non-human) mammals. (That does mean we completely ignore evolution, yes; or, if it makes you sleep better, you may assume pokémon magically appeared after practically all non-human vertebrate animals died.)
Nonetheless, pokémon are not the only animals in Sehto. For one, there are various non-pokémon flavour of fish in the sea (largely owing to the lack of variety in pokémon that are fish-shaped, honestly) as well as plenty non-vertebrate sea-life (coral, starfish, jellyfish, shrimp, you name it). For two, all annoying insects you can conceive also exist in Sehto, most notably whole swarms of mosquitoes just waiting to bite you into an itching mess, and crickets to grant the night its characteristic summer sound.
Language
Linguistic references in speech to real world creatures are absolutely permitted - “It's raining cats and dogs” is not a problem. That works for two reasons:
- many pokémon correspond to common animals in the real world and probably sometime go by its name; such as 'cat' for Meowth or Persian or 'dog' for Arcanine or Granbull.
- Sehto also has a real world overlap (even if it has very little impact on it), and while these creatures don't exist on Sehto, they likely still exist elsewhere.
Narrative is completely fair game.
Pokémon Generation restriction
Sehto pokémon are either Gen I, Gen II or custom-made.
'Custom-made' can under some circumstances (= copious begging and the fond inclination of the gamemaster) also be made to include individual Gen III+ pokémon, albeit only with Gen I/II moves. Gen III+ Abilities can, however, be used if they suit the freeform feel - and they often do! That being said, you're better off freeforming the ability than making a reference to it as a stat, e.g. Magneton may have Levitate but you don't need to make note of that for it to be blatantly obvious that ground moves aren't going to affect it.
Where the hell...?
Creatures in Sehto are placed in a freeform manner. If it strikes you as something someone could run into given the landscape description, it probably lives there.