In the book Animal Farm what are some examples of racism?

Racism is
ranking peopleor in this case, animalsin a hierarchy that assumes some types of animals/people
are inherently superior to others and so deserve to be in charge and amass more of society's
privileges. The most glaring example of "racism" in is the pigs,
who, almost from the start, set themselves apart as a superior and more deserving group. The
dogs also gain special privileges as an elite "race," second only to the pigs. The
animals that do the heavy labor of the farm are ranked lower in the hierarchy. This racism is
enshrined when the Seven Commandments are reduced to one, which states,

All animals are equal, but some animals are more equal than
others.

However, it is interesting to note that there is
some racism against rats and birds at the beginning of the novel. The animals have to decide
whether rats are really part of Animal Farm, and they have to come to understand that the birds
really qualify as having "four legs" if their wings are included as legs....