(access to fresh water and a healthy diet).

However, the line between the two is beginning to blur. Scientific advancements in ethology—the study of animal behavior—have demonstrated complex emotions in species previously thought to be unfeeling. We now know that pigs have cognitive abilities comparable to dogs, and crows use tools. This science fuels the rights argument, pushing welfare standards higher. If an animal is sentient enough to have complex social bonds, the "welfare" bar rises, inching closer to the recognition of "rights."

This scientific reality makes it increasingly difficult to justify "factory farming" or restrictive laboratory environments. If an animal can feel boredom, grief, or anticipation, then their "welfare" must include mental stimulation and social interaction, not just physical health. 3. Modern Challenges and Progress The Industrialization of Agriculture