Which animals are smartest: Dogs, cats, or … raccoons? 7th December 2017 "Intelligence is a tough nut to crack. In fact, it may be several different nuts. Each species has distinct skills and challenges". washingtonpost.com Related posts on this topic22nd January 2015 Dog-human cooperation is based on social skills of wolves, scientists show20th July 2017 It’s time we stopped anthropomorphising animals5th May 2018 Does your pooch really need Prozac?26th February 2017 Are we tough enough on animal cruelty?