Not all the time!
Tumors are actually quite common in guinea pigs, usually older ones, I believe. I doubt the tumors are always cancerous though.
Yes, unfortunately, they do. There is nothing you can do about it except take it to the vet.
No. If it breaks it will cut them leading to fatal injuries.
after being pregnant for a couple of weeks
Yes, virtually any animal can develop cancer
No!!!!!!!They are actually part of the rodent family.
No.
No. This is called 'inbreeding' and can be fatal to the guinea pigs, can lead to severe pain for the mother and can cause deformed offspring. Never let guinea pigs mate with their relatives. Ever.
I have three
yes, some of them are like soft kitty litter or some that are toxic and have scent Answer #2: Yes. Cedar wood shavings cause respiratory problems to guinea pigs. Over a period of time, this can be fatal. Pine is good though. I like the scent, and it's good for guinea pigs.
Not sure, but guinea pigs aren't type of pigs. They're in the rodents family, and NOT pigs. Hope this helped?