a dog is the third easiest pet if your not counting other rodents :)
no
Because God made all animals in a variety. No one is the same as the other.
I have Serbian hamster and they eat sunflower seeds other than that they throw the rest...
No other food than dead fish.
No difference- a robo hamster IS a hamster!
Hag fish
Chinchilla sand.There is no alternative. Water will strip away oils from hamster fur and cause the hamster to become sick and die.
Nothing, this is normal.
You can tell if a hamster is obese when it is quite larger than other hamsters of it's kind. also when they are lazy and can barely run or walk on their paws.
I would suggest a fish because they are easier to take care of because they dont need as much exercise as a cat or dog. A hamster wouldn't be bad if the child wanted a more playful pet than a fish, as long as the hamster doesn't bite. here's a list of a couple other animals: frog lizard bird guinea pig snake rabbit
You can teach your hamster to climb the bars of the cage like a ladder, or do monkey bars at the ceiling of the cage.
this more than likely means your hamster is only used to your sent and no one else, how to prevent this um this may be difficult to prevent but you can try taming you hamster to the other people it is nibbling... OH I nearly forgot if you hamster IS just NIBBLING and not really BITING the other people it may be because their hands smell like food or something tasty to your hamster! Hope this helped!