Did you know? Pop. of Hanoi, Vietnam (7.23 million people) is 1 thousand x Estimated world population of Sumatran Orangutan (7,300 individuals)
Other land in United Kingdom (2018) (41,400 km^2)
/fact/other-land-in-united-kingdom
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.