Your writing on this forum is one.
Get an ape to do it.
"Get an ape to do it.
Is the ability to communicate a difference or only the manner of communication? Gorillas and Chimps have been taught to communicate through sign language and Chimps regularly teach their offspring to use tools.
Sorry but animals do communicate.
Chimps can also type on a keyboard. They do not know how to produce language on the keyboard but this is no different than sticking a human such as yourself in front of a keyboard that types in only ancient Sanskrit and expecting you to produce coherent language.
What other differences are there? Give me something well defined, not just something that is a matter of degree. Perhaps give me a morphological difference as well.