[ 24 ] there are several different species of wolf on terra infirma ; wherewolves , wolves who , through a strange quirk of evolution , have no innate sense of direction ; carewolves , a multi-coloured species with unique markings on their stomachs which represent each individual 's duty and personality ; and darewolves , a species now very much on the verge of extinction due a combination of reckless bravery and downright stupidity .