They can learn techniques from animals and that's how the originals learned, but there's an inherent power that can't be taught. Sokka can live in a cave with the badger moles for decades, he'll never be able to move dirt.
Which, btw, dragons taught fire and flying bisons taught air. Water was the odd one out. Rather than an animal, they learned from the moon.
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So? I deeded to some gay porn. It doesn't mean anything. - Patty_Fleur