3 adjectives to describe simian

Nor did he talk instructively about the beginnings of life and how humans were but slightly advanced simians.

Professor Quantock de Banville relates how, while obtaining local colour for his new Choral Symphony, he was attacked by a gorilla in Central Africa, but tamed the mighty simian by the power of his eye.

For we must go back past empires and kingdoms and tribal conditions to the very beginning of the human race on the earth, even if so it be, to the first Pithecanthropus which men of science tell us was the link which connected Homo sapiens with the race of primitive simians.

3 adjectives to describe  simian