It is not given us to know how some animals know laughter, and know when they are being laughed at
 Jack London, White Fang (1906). copy citation

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Author Jack London
Source White Fang
Topic laughter laugh
Date 1906
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/910/910-h/910-h.htm

Context

“He tried to soothe his nose with his tongue, but the tongue was burnt too, and the two hurts coming together produced greater hurt; whereupon he cried more hopelessly and helplessly than ever. And then shame came to him. He knew laughter and the meaning of it. It is not given us to know how some animals know laughter, and know when they are being laughed at; but it was this same way that White Fang knew it. And he felt shame that the man-animals should be laughing at him. He turned and fled away, not from the hurt of the fire, but from the laughter that sank even deeper, and hurt in the spirit of him.” source