The origin of speciesism.
D032761:Animal Experimentation; D017087:Animal Rights; D000827:Animal Welfare; D000818:Animals; D035841:Behavioral Research; D028663:Ethical Theory; D004989:Ethics; D040821:Human Characteristics; D006801:Humans; D009014:Morals; D010684:Philosophy; D011287:Prejudice; D012106:Research
Analytical Approach; Biomedical and Behavioral Research; Philosophical Approach