ezo
Hero
Yes, we use them, from everything to setting and background flavor to adversaries (stinging flies, pack of wild dogs, charging elephants, etc.), to plot hooks (gathering up herd animals from raiders, etc.).So mundane animals: ranging from tiny butterflies flitting amongst the cabbages, pigeons in the town square, flocks of sheep grazing the hills, deer in the forest and seagulls squawking over the sea cliffs - do they ever appear in your games, even just as background flavour? Do you use any real world animals (ie not giant or magical forms) as hazards or even as encounters - a swarm of squirrels? a pack of normal wolves? a hidden tiger?
Or are all animals consigned to being familiars, animal companions, mounts and wild shape candidates?
Do you want to use more mundane creatures or is the fantasy of quantum butterflies and wild herds of alicorns more compelling?
Of course we use them for familiars, companions, steeds, etc.
More magical animals are thrown in at times, but rarely, as our groups firmly believe that making magic things and creatures too common removes some of the "magic" from the game.