Humanists have long been accused of being speciesist, or biased toward human beings at the expense of other species. Many humanists readily admit to being speciesist. Others deny it, and still others clearly are not speciesist. They are vegans or vegetarians and consistently speak, write and work for animal rights. Animal rights are not to be confused with animal welfare. Animal welfare concerns looking out for pets and farm animals, finding homes for pets, seeing to it that they receive veterinarian care, seeing to it that they are spayed and neutered, etc. Animal rights activists, however, insist that other animals have certain rights, such as the right to roam freely, the right to life, liberty and the pursuit of happiness, the right to be free from medical or scientific experimentation, etc.