Earn Zoo Cards to buy and breed animals. A parent animal (Male or Female) requires 30 regular cards each (Total of 60 Cards). A baby boy requires 15 rare cards and and a baby girl requires 10 Epic Card. The rarer the card, the harder it is to obtain. To complete a Zoo Family you require 85 Zoo cards in Total. When you have completed a family you'll earn a reward of 10- 25 T-cash.
In the Zoo Book you can see how many of the 192 animals you currently have in your Zoo.