What is the ratio of regular animal to fantasy animal in your world?
I was debating this question earlier today, as I thought back on my own story.
Do you have regular "real world" critters running around alongside magical beast? Or must all animals in your world be unique or differently fantastical to make your world feel like a true fantasy world?
How much whiplash, if any, do you get from seeing there be a regular ass beaver in one scene and then a kind of ermine that absorbs sunlight to flash its prey with stroboscopic lights, at night, to disorient them or paralyse them?
Do you find the need to make all mounts something other than just a horse? Or do your horses have fantastical properties as well?
In certain famous book series, like the Stormlight Archive, great emphasis is placed on the alien nature of the world, compared to that of us, the readers. No recognisable creatures from our world exist, save for a couple where they appear similar but with obvious and sometimes major differences.
Is that something that you require for your own immersion into the fantasy worlds you read? Or what kind of justification would you need for there being normal real world animals in a setting that is not Earth?