Board Game Arena

When you take animals,the system instructs you to put an animal 'with its friends'. Ok,you can't put different animals in the same enclosure.But how do you get more than one enclosure with the same animal ? I'm guessing that you must be allowed to put an animal in a holding pen,even if you already have an enclosure containing that animal. In which case,the instruction to 'put an animal 'with its friends' is misleading to beginners. It could for example say 'with its friends,or in a holding pen'.