Catia Faria and Oscar Horta have proposed urban welfare ecology as a subdiscipline of welfare biology, which would study the well-being of animals living in urban, suburban and industrial ecosystems. They suggest that much research has already been carried out on animals in these areas, but with the intention of eliminating their negative impact on humans, or to conserve animals of particular species. Faria and Horta argue that such knowledge can be applied to help mitigate the harms that these animals experience and that such environments are perfect for intervention experiments because such ecosystems are already greatly under human control and that the findings could be applied to improve the assessments of the well-being of animals in other ecosystems.[1]