As a pup, the Indians laugh at White Fang for showing signs of weakness, or stupidity, like yelping, or burning his nose on the fire. Beauty Smith also laughs at White Fang maniacally to incite his anger. Thus laughter represents shame, humiliation, even evil. But under Scott's care, White Fang learns to accept and embrace human laughter, even to laugh at himself.
Laughter Symbol Timeline in White Fang
The timeline below shows where the symbol Laughter appears in White Fang. The colored dots and icons indicate which themes are associated with that appearance.
Part 3, Chapter 1
Part 4, Chapter 3
Part 5, Chapter 4