Zebra unlock  

Zebra
Zebras are sanctuary animals. They are unlocked at reputation level 3.
Like all other sanctuary animals, players can only have four of them, one of each type.
Appearance
Zebras have two different adult appearances: cowlick and mohawk, and two baby appearances: brown and grey.
Unlocking zebras
Zebra Puzzles 1
Completed Puzzles-Adult
Zebra Puzzles 2
Completed Puzzles-Baby
Unlike other animals, zebras cannot be bought. Players must unlock them by finding puzzle pieces (which are collected in a log book). 36 pieces are required for each animal.
Once players have obtained the first adult zebra, the puzzle for the other adult zebra is unlocked, and so on for baby zebras.