Hippo (46%) - Every 17:22m has a 51.33% chance to roll around in mud. When doing so, plants within a 19.03 stud radius will have the Clay mutation applied.
Gorilla (27%) - Every 9:55m does a ground slam, speeding up egg hatch speed by 27.11% for 5 minutes.
Zebra (18%) - Every 3:07m has a 3.33% chance to dig up a striped seed. Striped seeds automatically have every crop grown on them applied with the "Striped" mutation. (5x value multiplier)
Elephant (5.5%) - RAMPAGE: Every 7:03m, has a 23.04% chance to go on a rampage for 15 seconds, destroying (removing) crops in its path (ignores favorited crops), destroyed crops will regrow with a 5x higher gold/rainbow mutation chance!
Giraffe (2.5%) - CLUMSY: Every 3:01m has a 17.44% chance to wobble into a nearby plant, applying the "Smooshed" mutation. (35x value multiplier)...
