Why do people allow dogs in races like a dog sled race I'll give u brainliest if u answer correctly!!

Six years later, a documentary, Sled Dogs, recounts the vivid details of that story, but goes further to ask and then explore if the grim events uncovered in Whistler were an aberration or just an extreme example of a callous subculture in the world of mushing where dogs are viewed as expendable. Directed by Fern Levitt, Sled Dogs – the first documentary to examine dog mushing – talks mainly to the critics of the sport and takes the audience on a whirlwind tour of the mushing business into other parts of Canada, into Snowmass, Colorado, and into Alaska where mushing’s signature competitive event, the Iditarod, occurs each year, with mushers and dogs racing to traverse more than 1,000 miles of terrain between Anchorage and Nome.

Explanation:

now you can mark brain hope this

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.