They grind their teeth and it makes a chattering sound.
Yes if they are happy.
Guinea pigs make noises to show their feelings like fear or exitment.
maybe because he/she is lonely or it's sick
it depends on what noise. if it is a very high noise then they want to be put down but if its just a nice pitch they are happy and they also use squeaking to communicate with other guinea pigs
Possibly, most of the time they make that noise if they get excited, frightened, or want attention from something.
i think they do. my guinea pigs make noise when im sleeping but sometimes they dont so yes they do sleep
lots of the time they do butsometimes they do not because they are sleeping
Voles make a small little chirps just like hamsters, guinea pigs, or gerbils.
Guinea pigs are afraid of vacuums for the first 4 or 5 times but after that they get used to the noise and they are not scared.
no they do not make guinea pigs fat !
They start to lure the females to get in heat with a purring noise then one hops on the other and they do it...
No. AIDS does not cross species.