Why don't rabbits have canines?

Answer 1

Rabbits don't have a need for canine teeth. Canines are used to hold food to tear it apart, that is why flesh eating animals have canines.

Rabbits have incisors because they generally only eat vegetation.

Answer 2

Because they are herbivores- canines have only evolved in carnivores and omnivores as a means of assisting in the tearing and piercing of flesh, whereas herbivores do not eat meat and thus do not need them.