expansion pack revolving around animals?

[arkitektorigins]

Imagine a perfect rimworld, where your animals have various specific stats that affect various things.
For example, they can be bred to produce more milk and wool, or to be bigger and produce more meat and leather, or for combat purposes.
You can try to breed them for rare mutations like albinoism, melanism, or something more practical like muscular hypertrophy.
Some creatures can be bred with others of a similar genus, but as a result, a lot of different similar types of animals need to be added. Like a few different types of elephant, like the pigmy elephant.