Well, you'd have trouble if you just tried to take a Zelda creature and put it on a planet in our solar system anyways.

You'd have to adapt and alter them to suit the environment that you're putting them on.

So, you may as well create one from scratch, it'll take about the same amount of effort and will probably be much more fun to do. (Plus, it'll probably get you a better mark.)

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"Science is the poetry of reality" ~ Richard Dawkins