Pachyderm roboform
Pachyderm roboforms were robot forms which originated in the Loxodon nebula, and which strongly resembled Earth elephants.
As the Ninth Doctor recalled, around 200 BC, (AUDIO: Ancient History [+]Loading...["Ancient History (audio story)"]) the Doctor accompanied Hannibal as he crossed the Alps (PROSE: Shadowmind [+]Loading...["Shadowmind (novel)"]) with several pachyderm roboforms, which the Doctor told Hannibal were regular elephants, alongside 10 children and a nun. He wanted to avoid awkward questions. (AUDIO: Ancient History [+]Loading...["Ancient History (audio story)"])
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In the real world, "pachyderm" is an obsolete order of mammals which once included elephants, rhinoceroses and hippopotamuses. It comes from the Latin pachydermus, which refers to "thick skin".
