Is it true that girl cats are multi-colored and boys just two colors?

That's not true! The color and pattern of a cat's fur is determined by their genes, not their gender.

Here's why the myth exists:

* The X chromosome: Female cats have two X chromosomes (XX), while male cats have one X and one Y chromosome (XY). The genes for coat color are primarily located on the X chromosome.

* Color variations: This means female cats can inherit different color genes from each of their X chromosomes, leading to a wider range of color combinations like tortoiseshell or calico. Male cats, with only one X chromosome, usually only express one color.

* Exceptions: There are exceptions to this rule. Male cats can be tortoiseshell or calico if they have an extra X chromosome (XXY) which is a genetic condition.

So, while it's more common for female cats to be multi-colored, it's not a guarantee! Both male and female cats can have a variety of colors and patterns.