Did you know? Height of the Eiffel Tower (324 m) is 2 x Height of Ulm Minster, Germany (161.5 m)
Estimated population of Red Wolf (USA) (300 individuals)
/fact/estimated-population-of-red-wolf-usa
Link
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.