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.

"They're kind of like our hidden allies." The south Gippsland organic beef and lamb farmer is talking about a species of annelid worm called the giant Gippsland earthworm (Megascolides australis).