Some Animals and Buildings require more than just 1 space on your Zoo map. If there are arrows (9) on one or more sides of the tile, this tile requires Open Areas (10) (face-down tiles) on the adjacent spaces at which the arrows point. They may not point at tiles that have already been played face up, nor may they point at the outside of your Zoo map.
If the arrows point at Open Areas that are already in your zoo, you can also use these for the newly played tile. This is also true for the Open Areas already printed on your Zoo map. Otherwise, you must place tiles from your hand face down on the empty spaces pointed at to create the Open Areas.
Each Open Area in your zoo is worth 1 point at the end of the game.
EXAMPLE: To play the female Sumatran Tiger, you need 2 Open Areas, one at the top left and one at the top right of its tile. In this example, there is only 1 space with an already existing Open Area or room for a new Open Area at the top left and top right.
To create the missing Open Area on the left (A), you must place a tile from your hand face down in your zoo. Conveniently, the Open Area on the right (B) was already printed on your Zoo map.