Yes they can.
Highly unlikely, unless they roam freely in field or play in your backyard with other pets that have parasites. There's always a chance they could pick up a parasite, but if they are kept in a clean hutch then its not likely.
Either leave it, it should come off in the sawdust or wood shavings, whatever is in your guinea-pig's cage, or, you can pick up the guinea-pig and flick it or pick it off.
No, you should not touch them right away. Wait for a few days (a week or so) and let them get use to their cage and their parents. Then pick them up.
Guinea pigs can get mites for several reasons, they may pick it up from another animal or they may just be living in an environment that needs to be clean. If your guinea pig has mites take it to a vet or call one IMMEDIATELY.
guinea pigs can live up to 8 years old i should know i have had like 8 guinea pigs!
Guinea pigs can grow up to 1200 grams
The anser to your question is no, Guinea pigs dont have tails so it is impossible to pick them up by them. The origin of this question comes from a older movie.
guinea pigs can typically weigh 1 and a half to 3 pounds.
guinea pigs do this for a number of reasons. check its food, water and if it is doing it excessivly, pick him/her up and and check that it has no cuts or lumps. they do this sometimes however, just out of boredom.
Guinea pigs eat A LOT, this is normal. If she is sqealing and squeaking when you pick her up then she may not be used to being handled. The only way to fix this is to handle her often so she gets used to it.
Mine does this too. Mine runs away from me so not hard but pick it up and support the butt and lightly push against the cage. It works for me.
It is probable not used to human contact. You should slowely talk to him and approach him (still talking) and pick him up. Keep talking