The fact that these rather specific animals were added at the same time as all of the animals we got in all of the DLC from Wetlands to Barnyard should at least raise an eyebrow, though. It’s not like this seems to be a routinely updated dictionary, and it’s not like it contains a semi-comprehensive list of animals - it’s missing plenty of the more “everyday” animals you’d likely prioritize when trying to flesh out a constructed language, such as squirrel, rabbit, shark, or goose. Yet for some reason they felt compelled to come up with translations for and include echidna and hamadryas? Nah, I’m not buying it. I’m not saying these animals are explicitly confirmed for the next DLC or whatever, but there’s absolutely something with some intent behind it going on here.