A photo of Nim Chimpsky (1973-2000) at a sink with dirty dishes. Nim Chimpsky was the subject of an extended study of animal language acquisition at Columbia University.
In an obituary of sorts for Nim Chimpsky after his death, the researcher Laura Ann Petitto said that the chimp "mastered only some, not all, of human language, and we humans told the world about this. He taught us that parts of this remarkable thing we call language are special to humans."
Photo credit: Herbert Terrace, via Wikimedia Commons.