How are goldfish boys i just wan to k now for a school project?

Goldfish are not typically classified as boys or girls, as these terms are usually associated with mammals. Goldfish are a type of fish that belong to the family Cyprinidae, which includes many different species of carp and minnows.

Goldfish are sexually reproducing animals, but their anatomy is different from that of humans and other mammals. Male and female goldfish have similar external characteristics and it can be difficult to determine their sex without close examination. One way to tell the difference is by looking at the shape of the body and the abdomen, which are often more rounded in females compared to males, especially during breeding season. However, this method is not always reliable, and it's best to consult with an experienced fish breeder or veterinarian to accurately determine the sex of goldfish.