Cat intelligence the average human. Within the encephalization quotient proposed by Jerison in 1973, values above 1 are classified big brained, while values lower than 1 are small brained. The domestic cat is attributed a value of between 1–1.71 relative to human value that is 7.44–7.8. The largest brains in the Felidae family are those of the tigers in Java and Bali, of which the largest relative brain size within the "panthera" is the "tigris". It is debated whether there exists a causal relationship between brain size and intelligence in vertebrates. Correlations have been shown between these factors in a number of
Governing Council of the Cat Fancy November 2010. It licenses cat shows put on by its affiliated clubs with about 135 shows per year. Pedigree cats shown at these shows can gain the titles Champion, Grand Champion, Imperial Grand Champion and Olympian. The latter having three levels, Bronze, Silver and Gold. The word Champion is replaced by Premier for neutered cats. The showing of non-pedigree cats (often referred to as Domestic shorthair and Domestic longhair) and Pedigree Pets is also popular at GCCF shows. The GCCF also co-ordinates its own show: the Supreme Cat Show, which is famous for being the world's largest cat show and