IELTS Writing Task 2: Society — Advantages & Disadvantages Sample Answer

Animal testing occupies a uniquely contested ethical space: it has undeniably contributed to medical progress, yet it inflicts suffering on creatures capable of experiencing it. Whether the benefits justify the costs depends on both empirical assessment and fundamental moral commitments.

The case for animal testing in medical research is grounded in necessity and outcomes. Before treatments can be administered to humans, their safety and efficacy must be assessed in living organisms with complex physiological systems similar to our own. Decades of biomedical research on animals have yielded vaccines for polio and meningitis, treatments for HIV and cancer, and surgical techniques that have saved countless human lives. Regulatory agencies in most countries require animal testing as a precondition for human clinical trials specifically because the alternatives cannot yet replicate the complexity of whole-organism responses to novel compounds.

The ethical objections are, however, compelling. The use of sentient beings as experimental subjects causes genuine suffering — often severe — and reflects a moral hierarchy that many philosophers and members of the public increasingly question. Animals cannot consent to being used as proxies for human benefit, and laboratory conditions typically cause significant psychological distress regardless of physical pain. Furthermore, there is a scientific critique: the predictive validity of animal models for human responses is imperfect, contributing to the high failure rate of compounds that perform well in animals but fail in human trials.

Progress in alternatives — including cell cultures, organ-on-a-chip technologies, and increasingly sophisticated computer modelling — is accelerating. The ethical imperative should be to invest substantially in these methods, accepting animal testing only where no adequate alternative currently exists.