Ergon

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You may be looking for the Ergon.

Ergons were creatures, the hide of which the Draconians used to make their armour until the Ergons died out. Although Altazar denied it, some believed that the Draconians had hunted the Ergons to extinction. (AUDIO: The Armageddon Chair [+]Loading...["The Armageddon Chair (audio story)"])

Omega created an Ergon in one of his less successful attempts at psychosynthesis. Tegan Jovanka described it as "looking suspiciously like a plucked chicken". (TV: Arc of Infinity [+]Loading...["Arc of Infinity (TV story)"])