Although Duggan travels in the TARDIS at the end of the story, I'm not sure if he's considered a companion, so I left him off the list in the infobox. --Dr. Corpuscle 07:39, 21 June 2006 (UTC)
Scientific Inaccuracy?
I feel like it would be of some interest to mention somewhere on this page the scientific inaccuracy (from a real world point of view) in the given date for the first forms of life arising on Earth? I know one is prohibited from mentioning it in "Production errors" (as we cannot know whether the change to real world history was intentional or merely an oversight), but then, where? --Scrooge MacDuck ☎ 22:12, September 1, 2019 (UTC)