animal sentience

Invertebrate Ethics

by Roger Crisp

In a recent and very interesting paper, Irina Mikhalevich and Russell Powell (MP) argue that the same standards of evidence and risk management that justify policy protections for vertebrates also support extending moral consideration to certain invertebrates. In this blog, I’ll offer two lines of argument broadly supportive of MP’s conclusions. First, even if invertebrates are non-sentient, their lives may contain elements of welfare sufficient for moral standing. Second, justice speaks in favour of giving priority to the interests of most invertebrates, since their lives are so much less valuable for them, in terms of welfare, than the lives of most vertebrates. Continue reading

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