In most cases yes, nothing wants to be stuck in a cage. That's the only way it knows to get out.
Yes, hamsters bite there cage. Mine doesn't but I know someones hamster that does. Try picking it up when it does that or shoo it off the cage.
puppy
is puppy itching normal
The simple answer is you keep them separated when you are not there. Introduce them when you are and teach the dog to accept the puppy.
they bite you and scratch you
Obtain a cage with your new puppy the cage will help make the puppy feel secure, will make a home there and will therefore not spoil. Feed puppy and then put back in cage after 30 mins take puppy out to back garden where it may spoil as it spoils say the words 'busy busy' return puppy to cage with treat. repeat this every day (puppy can obviously come out of cage at other times but be careful not to overtire) The puppy will adopt the habit that every time you take it to the garden and say 'busy busy' it will spoil and therefore never be undisciplined enough to spoil in the house or where it shouldn't. Useful if taking dog on a train, bus etc as you can be confident it won't want to go if you have already 'walked' it in the garden.
keep them in the same cage
Yorkshire terriers do bite when they are teething as puppy"s but when they are older and if your a good trainer to tell them not to then your yorkie will not bite.
no they cant
they shouldn't be in cages buy him/her a bed. it isn't safe for a dog/puppy to be sleeping in a cage the paws can get ruined or if it stays in there long enough when it gets older it can attack you it happened to me
puppy mills need to get food so they can take there last bite i feel sad for the puppies
No