@sullivanribbit just gave a possible easier mining solution here in another discussion:
This would give the world comparison - for examples Mallards: https://www.inaturalist.org/observations?locale=en&order=asc&preferred_place_id=7085&subview=table&taxon_id=6930
Changing the taxon to be more general such as Aves would give Yellow-crowned Night-Heron Nyctanassa violacea as the first iNat bird observed https://www.inaturalist.org/observations?locale=en&order=asc&place_id=any&preferred_place_id=7085&subview=table&taxon_id=3
https://www.inaturalist.org/observations?locale=en&order=asc&place_id=any&preferred_place_id=7085&subview=table&taxon_id=1 would give Monarch as the first Animal