Susan is a writer, lecturer, sceptic, broadcaster, and a Visiting Professor at the University of Plymouth. Her fields of research include memetics, parapsychology, consciousness, and she is best known for her book The Meme Machine. She has written or contributed to over 40 books and 60 scholarly articles and is a contributor to The Guardian newspaper in the UK.
She has a naturalistic worldview and is a patron of Humanists UK. In this article, she recognises the strong evidence that many non-human animals are capable of experiencing suffering, but refers to "vegetarians" in the third person, saying "Many people become vegetarians because of the way farm animals are treated".