Cat intelligence
The brain of the domesticated cat is about long, and weighs . If a typical cat is taken to be long with a weight of , then the brain would be at 0.91% of its total body mass, compared to 2.33% of total body mass in 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 experiments. However, correlation does not imply causation. Most experiments involving the relevance of brain size to intelligence hinge on the assumption that complex behavior requires a complex (and therefore intelligent) brain; however, this connection has not been consistently demonstrated.
King-Size Canary
The mouse in the house takes a few sips of plant food, instantly ballooning to gigantic size. The dog chases the cat to the city, only for the now gargantuan mouse to show up and scare the bulldog away with a simple "Boo!". The mouse who is as tall as a 20 story building and just as fat, reminds the cat that he told him he would save his life. The cat thanks him as the mouse hands him the bottle back and waddles off. The cat, rubs his enormous belly realizing he still is hungry, sees the huge mouse stomping off and gets another idea. He suddenly drinks more of the formula and grows even bigger and fatter than the mouse. The cat who is by now 100 stories tall, chases the giant but smaller mouse through the city and across the country, passing the Grand Canyon, Hoover Dam and the mountains.