Kalathma
I'm taking on your challenge as a side-project.
ninja I'm curious as to how the evolved animal language would turn out... What kind of language do you think it'd end up as? Say, for a snake, it would be filled with S's?
I have done some research on the anatomy of the snake, and if it was ever to be able to speak a language the tongue would have to evolve as well. though the language would still need to have some sort of trait to their previous way of life yes, including the need to evolve a way to hear in the first place.
I always imagined a snake language more based on the th sounds (from THanks) than a S sound.
so a sample of what I might think the snake language would sound like would be this.:
Zdraveth neom chovest krivoth nenith zadruvenem.
(no translation)
now the snake would have to grow a humanoid body which still being cold blooded would make it a very unique species. though I do think your idea with the S sounds would be a very interesting language and would like to see what you come up with!!