yes it is a natural and normal thing because as guinea pigs grow their poo gets longer or fatter and grows along with it. it wouldn't make sense if your a giant and your poo is tiny. if it doesn't eat enough then it's poo will be shorter in length. the answer to your question is "normal"
as guinea pigs grow older they usually change colours because their skin and fur stretches. it is perfectly normal
It depends on what type of guinea pig you have. It will vary.
yes
The adverage pet guinea pig will only reach about 35cm in length.
Indeeed
Yes
your guinea pig should be fine if the glue was non-toxic and is acting normal
Guinea pigs is a lot bigger than hamsters. A hamster is about the length of one baseball while an adult guinea pig is about the size of three baseballs. In fact, if you place food in front of a grown guinea pig, it can stretch itself to the length of a foot with ease. A hamster wouldn't stretch to that length, not even when forced.
NO it should be yellow
Average respiratory rate for a guinea pig is normally from 40 to 150 breaths per minute.
Yes, its quite normal. Most of the time it is males that get hay or straw stuck there. You could just pull it out for the guinea pig to be more compfortable.
you have to put the guinea pig in a cage and feed it with the guinea pig food and just be normal