The Black Yak is an animal in FarmVille which can be found in the 4th Mystery Animal Crate. The crate could be purchased for 20 cash. It was released on June 1, 2010 and made available until June 9, 2010.
- Main article: Mastery
| Level 1
|| Level 2
|| Level 3
|| Mastery Total
—Image © Zynga
Mystery Animal Crate Notification
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