Aron Hernadivic, he may be Czechian, but the tropical and subtropical waters of the world are considered his home, as Aron's spirit animal is none other than a pufferfish. Pufferfish tend to be slow and clumsy swimmers, which evolutionary biologists tend to believe resulted in the evolution of their "puffiness" as a means of survival (Nat. Geo., n.d.). Just like pufferfish, Hernadivic can consume large amounts of water and sometimes even air as a means of protection, although Hernadivic tends to do it as he's often dehydrated, and prefers to consume large amounts of food (Nat. Geo., n.d.). Furthermore, like pufferfish, Hernadivic also contains toxins that would make him taste foul to others of the same species, although this toxin isnt tetrodotoxin, and is instead alcohol (Nat. Geo., n.d.). Finally, just like pufferfish, Hernadivic is also susceptible to pollution and habitat loss as a result of climate change (Nat. Geo., n.d.).

Source: https://www.nationalgeographic.com/anima...ufferfish/