Take a look at this link www.cavyspirit.com/sexing.htm
Yes. Especially if they'd never seen their own kind before.
Yes and fast
you shoudl not put a hamster and a guinea pig in the same cage no matter what.
No, not posible.
Thankfully, female guinea pig don't menstruate.
it is not just the female guinea pig. all guinea pigs need exersise but never ever get a running wheel for the guinea pig their backs are so sensitive.
it depends what type of guinea pig you have
A male desexed Guinea Pig is called "Neutered", and a female desexed Guinea Pig is known as "Spayed".
The male guinea pig is called a boar and the female is a sow because of their name "pig", even though they're not pigs. A male pig is a boar and a female pig is a sow, so the guinea-pigs have been named after them.
YES and do it fast
Approximately 10 days.
20