"I actually saw a part of a giant earthworm, which was quite a surprise when you actually see how big they are in real life," ...

You may never have heard of the Terriswalkeris terraereginae, a giant blue earthworm living deep in the moist soils of tropical north Queensland, but it’s the prettiest worm you’ll ever see.

Still, this robot isn't as big as the rugged tunnelling robot created by the multinational company GE, one of the few earthworm robots being developed for near-term commercial applications.