english: They point out that true hiccups are found only in mammals and that they're not retained in birds, lizards, turtles, or any other exclusively  air-breathing animals.
non_english: Ističu da je istinsko štucanje prisutno samo kod sisara, a da se nije zadržalo kod ptica, guštera, kornjača ili bilo koje druge životinje koja isključivo diše vazduh.