Generally quite young at this stage because they are getting used to their new home and surroundings.
Of coarse it can.
It means that the gerbil felt like biting you
No it cant
the fatter the gerbil, the thicker the bedding.
a rat, mouse, gerbil, guinea pig, basically any rodent
It is called a gerbilarium.
Syrian Hamsters will kill and eat a gerbil, do not put them together in the same cage.
Get a screen and put it in the middle of the tank/cage.
No, never do this. Hamsters are solitary, and it may attack the gerbil.
Because she is scared or excited and wants to tell another gerbil. Or she is calling for a male gerbil to mate with.
Take it out of the cage ASAP and bury it in a box.
A gerbil will protect itself by biting the attacker. Sometimes a bite can draw blood.