Every 1 week. Or when it starts to smell.
Once a week.
Yes, with the proper housing.
It shouldn't!!! You must change it more often! Daily!!! would you like your food to be slimey???
3 days
yes
All the time.
Foxes are omnivorous which means they will eat almost anything. But they do tend to like meat. Small animals and insects are their usual prey so yes, guinea-pigs might be something they would eat.
No. Mammals cannot change gender without medical intervention.
No!!!!!!!They are actually part of the rodent family.
No.
I have three
First of all, guinea pigs don't have fur, they have hair. That is why they are used for testing cosmetics and hair products. As a guinea pigs ages, it's hair probably gets just a little lighter or darker. But that is only true with colored guinea pigs, not albinos.