Hi there!
I have a suggestion for the settings of your nation. Instead of detecting which type of animal your national animal is by key words, e.g. "Shark" or "Deer", you could have a small drop-down list, with the options of Aerial, Land, or Sea animal. This would allow people to use foreign words for animals. For example, my current national animal is the Greater Ayarokese Jinbeizame, a Jinbeizame being the Japanese word for Whale Shark.
Hopefully this could clear up some issues regarding national animals and grammar, thank you for your time!