A military-built dragon-looking creature, mechanically augmented from the natural 'base' specie.
Originally built for war, designed to operate among dense vegetation and on rough terrain, and be able to function and provide support for it's unit for months without resupplying.
Has now been decommissioned years ago, then released into the wild.
Drawn by echinoderma on FA.
Link
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Like zoids and other living mechs, I really enjoy this concept. Looks pretty cool too.