I think animals are divided not by “country” but by significant change in geographical features of a place where they live. Probably a dense forest monkey under

I think animals are divided not by “country” but by significant change in geographical features of a place where they live. Probably a dense forest monkey understands the calls from another monkey from a dense forest but not from a deserted place. It’s only my assumption, as they [have to] learn to make different sounds based on where they live.. probably.