Both of these skills are currently broken.

Evolution does not make a mouse have the little cloud below them and they will not jump higher. Sheep has been broken for several years now and there has been no fix?

Anyone else having these issues?

Also there is a bug with the skill "Anti-gravity" on the spiritual guide tree, if you are using it with the mechanician skill "Multiple Balls" it will cause the balls to go flying forcefully everywhere violently.

Evolution actually doesn't work till someone gets to the hole, but yes, sheep has been broken.
No one knows whether it's an intended effect for Anti-gravity to work so.

Oh okay thank you very much that is very helpful.

By the way, the Anti Gravity glitch only happens if both Multiple Balls AND Anti-Grav are at max rank, try it sometime its sort of like using a cannonball totem except... well.. you can cast it repeatedly.

Great for double shaman K.O.'s

These are known bugs and has been reported already. Till this day we are still waiting for this to be fixed