David Alan Nibert (born 1953) is an American sociologist, author, activist and professor of sociology at Wittenberg University.
[4] According to Nibert, speciesism is an ideology that seeks to legitimize animal slavery, defending the discrimination against sentient beings on account of their species.
For example, some scholars argue that cultural practices that define and use nonhuman animals as food contribute significantly to various forms of environmental devastation.
Human health research indicates that high rates of heart disease and cancer in many cultures can be attributed to the consumption of animals.
Others suggest that human perception and treatment of nonhuman animals are related in significant ways to such enduring problems as racism, sexism and violence against vulnerable groups of people.