The Crook Lab’s work on affective states in cephalopods is currently featured in Science News’ cover story on animal emotions. In the wake of the UK Parliament’s Animal Sentience Bill, there has been increased interest in the capacity of invertebrate animals to feel emotional and affective states such as pleasure and pain. Our work on pain experience in octopus was heavily influential in the report that aided the UK’s decision-making process on declaring cephalopods sentient animals, and in this story the journalist explores the role of behavioral measures of emotional states in a wide range of species. It is encouraging to see growing interest in the similarities among internal states of invertebrate and vertebrate animals, as to see that this increasing scientific knowledge is being used to support the need to regulate the use of some invertebrates in research and other settings.