7. Use Stop-action Animals
The arrows on the fence can be used to select and freeze any moment of the animal transformations. That allows you to use the hiding animals that only appear while an animal is changing.

For example, the goose is hiding in the rhino scene. To use it in a combination, go to the rhino and choose the monkey head. You'll see the goose in passing. When the rhino head has finished changing, you can click back to the goose by using the left arrow on the fence. Use the right arrow to click in the other direction and select the exact image you want to use. Then select different legs and tails in the usual way.

8. Use Quick Switch animals
Add more animals to your combinations by using the Quick Switch panel on the sign to the left. Pause your cursor over any button to see the animal's name. Click to select the new feature. Use the scroll bar on the right side of the panel to see all the choices.

When you click the legs or tail button on the fence, the Quick Switch panel will display the animals available for that feature. Click the Animal List button to the right of the zoo window to see a complete list of the animals in Switch Zoo.