We have quite a bit of enquiry from people whose rabbit is biting them all of a sudden.
Things that can cause a rabbit to become aggressive:
* The big one is not desexed! An undesexed rabbit is most likely to become aggressive
* Territory is the second big one! Rabbits are incredibly territorial. They will fight to protect their territory.
* Food - rabbits will squabble over food
* Space - if there is not enough room then rabbits may fight
* Resources - ensure there is enough of everything for your rabbits