The anthropologist Desmond Morris observed how men in the early part of
the 20th Century carried themselves in a very stiff, upright manner.
Steps were brisk and sharp.
By contrast, men in the later part of the 20th Century adopted the rolling gait
of the saddle-sore cowboy.
The popularity of cowboy films during the 1950's and 1960's led to a widespread
mimicry of the exaggerated machismo exuded on-screen by cowboy actors.
