You can unlock them. If you look for the cheat codes to unlock them with you can get them. When you've wrote the cheat code in and it says it gave you the enclosure, go on one of your animal enclosures then go out again, you should see the empty enclosure. =)
If you find out the cheats on the game roar then you discover new things, like another enclosure, a new animal or some different food.
Type in on cheat codes, blizzard7. It will get you a new enclosure.
If You Enter snow1 you will get ice world a new enclosure that lets you raise harp seals penguins etc
These are just enclosures, and habitats for 2010, so it's all kind of new. water 107 - South American Jungle water 218 - Snow world - Habitat sun 17 - Enclosure air 9 - Enclosure moon 9 - Enclosure Snow-leopard - fill enclosure with straw.
Rain2 (Ostrich) Rain10 (Lion) Sun9 (New Enclosure) Sun7 (Forgotten unlockable lol) Air9 (New Enclosure) Coral9 (Fish cakes I think) Blizzard7 (New enclosure) Blizzard17 (Ant's Nest) Blizzard678 (Moss) Blizzard789 (again forgot) Snow1 (Arctic Beach / Official name "Ice Fields") Codes I get mixed up with: Fog120 and Fog 15 (One is penguins, the other is Arctic Forest) Also new series 6 codes; WOOD4 GRASS2 CRYSTAL888 GOLD5 GOLD9 (Smiley1999 :D)
The cheat codes for new enclosures on roar are sun17 moon9 air9.
snow1
The code for Ice World is Fog15, (if I'm wrong it's Fog120.) One of those unlocks penguins, the other unlocks Ice World. Also Blizzard7 unlocks a new enclosure and Snow11 unlocks Bread.
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snow1
E<199
There are roar cheats on a website with all the roar cheats on and it gets updated every week its called - http://wiki.answers.com/Q/What_are_some_CBBC_roar_cheat_codes just copy and paste it or click on it!