What do studies of animal cognition mean for ethics?

One of the most-viewed posts that I’ve written was about animal intelligence. I still maintain that the current mainstream view of animals is outdated and needs to recognise that non-human animals are, while not as intelligent as us, more intelligent than usually given credit for and, as fellow sentient creatures, deserving of moral protection. Currently, there is more and more scientific evidence being produced that supports intelligence in a wide range of species. I imagine resistance to these findings comes from a few sources such as many religions making an explicit separation between humans and animals (one which is not supported by biology), a lack of knowledge of studies of animal intelligence and a reluctance to acknowledge these findings as that would necessitate a complete overhaul of how we live our lives. Continue reading