Yes. Give him some sheets of unscented, non lotioned tissue and he will shred it up for bedding. Not all gerbils are the same, though, so make sure he doesn't eat it. My gerbils shred toilet paper for bedding.
take it to the vet or get a tissue
Yes, a gerbil can recognise their owner, my sister has two gerbils but I play with them more, they will come and play with me but they are too scared to play with my sister.
They are social animals, and will groom and play with each other.
frequently.
they do play because they play with you and maybe they just want to have a run a round
Gerbils are terrible at singing. They prefer to play the keyboard. My gerbils are good at opera singing and playing the bog roll
Maybe. It mainly depends on the gerbils and dogs themselves. Some dogs like small animals and really want to play with them, some don't. Most gerbils get really timid around bigger animals, but not all.
Gerbils tails can fall off if someting tugs against it. i would get it to a vet straight away and just on the way keep it mopped up with some tissue prehaps, dont worry im sure it will be fine ;)
Other gerbils.
Gerbils are an animal and can not be "invented".
Play with it more and when it gets older get 2 baby gerbils to keep it company.
Male gerbils can be neutered, but it is not recomended. Female gerbils should not be spayed. In general male gerbils should not be neutered unless there is a good reason for it.