Male guinea-pig behavior

Question
Hi!
Well I'm just wondering if you should be able to see the testicles on a male guinea pig...it looks as if my pig has quite a pair then... Maybe there's something that I don't know about, it's my first one and I can't help questioning every little thing.
Another thing is: he drags his bottom along the floor...why? is he marking out his territory?
Thank you!

Answer
Hi Katrina

Testicles arent so easy to see usually, but like in humans, sizes vary! If you are worried, get a vet look at him to make sure is he is in perfect working order. A check-up wont cost much.

Dragging his butt on the floor, is, as you say, the pig marking his territory. A piggy has sweat glands on his rear and this behaviour is perfectly normal.

Please do not hesitate to write back if I can answer any more questions for you.

Andy