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Estimated world population of Arabian Tahr (5,000 individuals) is 20 x Estimated world population of Pygmy Hog (250 individuals)
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Fastest speed attained by a human-powered watercraft (34.3 km/h)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.