That’s what I plan to do, after I finish checking everything.
Didn’t know that.
Anyway, I finished checking the campaigns I have access to.
No scenario out of Montezuma, Dos Pilas, Drake, Vinlandsaga and Karlsefni uses any of the new animals, even though at least the snake would fit (and the Caiman and Black Jaguar, outside of Vinlandsaga and Karlsefni).
Drake could also have capybaras, as there’s a species that lives around the region represented: Lesser capybara - Wikipedia
Pachacuti now exclusively uses black panthers instead of jaguars, which ends up being really cartoony.
Snakes seem to be completely unused, though I don’t have access to TLC campaigns and I haven’t checked scenarios set exclusively in the Old World.
They should really have added pumas, marsh deer and maned wolves too, pumas live all through North, Central and South America and Maned Wolves and Marsh Deer would add more animals that actually live in Brazil.
Edit: Almost forgot to point this out: While checking the scenarios I found out the War Hulk is actually called Pontão de Guerra in-game, but Hulk de Guerra in the tech tree and in the hover tip for the upgrade tech.