"If monkeys, why not donkeys?
Certainly they do.

All creatures have some means of communicating their thoughts to each other.

Why man in his conceit should think otherwise I don't know, unless it be that the birds and beasts in their conceit probably think that they alone of all the creatures in the world can talk." "I haven't a doubt," said Doctor Livingstone, "that monkeys listening to men and women talking think they are only jabbering." "They're not far from wrong in most cases if they do," said Doctor Johnson, who up to this time had been merely an interested listener.
"I've thought that many a time myself." "Which is perhaps, in a slight degree, a confirmation of my theory," put in Darwin.

"If Doctor Johnson's mind runs in the same channels that the monkey's mind runs in, why may we not say that Doctor Johnson, being a man, has certain qualities of the monkey, and is therefore, in a sense, of the same strain ?" "You may say what you please," retorted Johnson, wrathfully, "but I'll make you prove what you say about me." "I wouldn't if I were you," said Doctor Livingstone, in a peace-making spirit.

"It would not be a pleasant task for you, compelling our friend to prove you descended from the ape.