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Megadon
From Warhammer 40k - Lexicanum
Megadons, known to the Exodite Eldar as Dragons, are large repitalian animals commonly found on Exodite Worlds. It is likely that the Megadons were at one point native to a particular planet or region, but early Exodite settlers have since spread them throughout the galaxy. The Exodites follow Megadon dragon herds as they graze in the endless grasslands of the great plains of their worlds. The Exodites share a close bond with Megadon herds, often riding them into battle.[1][2]
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