When species are compared, is it the person or is it the capacity of the body used by the person:
http://bigthink.com/philip-perry/whose-smarter-cats-or-dogs-science-has-found-a-clear-winner?utm_source=Daily+Newsletter&utm_campaign=e35b1b8831-EMAIL_CAMPAIGN_2017_12_03&utm_medium=email&utm_term=0_45b26faecc-e35b1b8831-43658985