Richard is an ethologist, evolutionary biologist, and author. He is a vocal atheist and naturalist. He grants moral consideration to sentient non-humans in principle and hopes for a vegan world, as you can hear in these discussions (with Sentientist Peter Singer and in this talk). However, in practice he continues to buy and consume sentient animal products. The Center for Inquiry, where Richard is a founding board member, published this article about Sentientism in their Free Inquiry magazine.
Richard on Wikipedia