Iry
Legend
Apes use a language of gestures and simple sounds in their own life, so they certainly have a language of their own. They are also capable of slightly more advanced linguistics, and can be trained in sign language and simple mimic words.
I don't see any reason why Tongues would not work on them, unless the DM feels that their inability to form our words prevents them from speaking back. In which case, the Ape should at least be able to understand you to the limits of its intelligence and wisdom.
I don't see any reason why Tongues would not work on them, unless the DM feels that their inability to form our words prevents them from speaking back. In which case, the Ape should at least be able to understand you to the limits of its intelligence and wisdom.