Rabbits:

 
Social contact with other rabbits Never keep just one rabbit
Exercise Large living quarters
Gnawing Natural gnawing material
Digging Natural ground
Hiding places Huts and shelters
Overview Elevated areas
Stimulation Sometimes changing positions of hutches, branches etc. in the run
Resting time Being careful to give them time alone
   

Guinea pigs:

 
Social contact with other guinea pigs Never keep just one guinea pig
Exercise Large living quarters
Gnawing Natural gnawing material
Hiding places Huts and shelters
Stimulation Sometimes changing positions of hutches, branches etc. in the run
Resting time Being careful to give them time alone