What does a boy guinea pig and girl look like?

It's difficult to tell the difference between a male and female guinea pig just by looking at them! They both have similar body shapes, fur types, and color patterns.

Here are some general guidelines, but they're not foolproof:

* Males tend to be larger and heavier than females. However, this difference can be subtle, and some females can be larger than some males.

* Males have a larger distance between their anus and genitals. This is often referred to as the "distance between the bumps."

* Females have a small, round, raised vulva. It's located just in front of the anus.

* Males have a penis, which is not always visible. It can be hidden by fur, especially in young or less developed males.

The best way to determine the sex of a guinea pig is to have a veterinarian or experienced breeder check them. They can be more certain about their sex after examining the genitals closely.

It's also important to note that:

* Baby guinea pigs (under 3 weeks old) are very difficult to sex. It's best to wait until they are a bit older.

* Some guinea pigs may have unusual physical characteristics that make it difficult to determine their sex.

Remember, even with these tips, it's best to seek professional help for a definitive answer!